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Tentative Agenda for the November workshop

PATCH New Hans Verkuil 12 participants 41 messages Oct 22, 2012 – Dec 11, 2012 Media (V4L/DVB)

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#0 lore raw

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

For those whose name is behind a topic: please prepare something before the meeting.

We have currently 17 or 18 attendees of a maximum of 25, so there is room for a few more people.

Regards,

Hans

#1 lore raw

Hello,

Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance,
etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

Quoted 5 lines

For those whose name is behind a topic: please prepare something before the meeting.

We have currently 17 or 18 attendees of a maximum of 25, so there is room for a few more people.

Signature · 3 lines
Regards,

Laurent Pinchart
#2 lore raw

Hi Laurent,

Quoted 24 lines · Laurent Pinchart

Hello,

Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance,
etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

--
Regards,
Sylwester

#3 lore raw

Hi all,

Could someone summaries very rapidly what is this create/select context stuff ? For now I do not plan to be in Barcelona more than 1 day but at the same time don't want to miss something that might be useful for us.

Regards,

Alain

Quoted 58 lines

-----Original Message-----
From: [email protected] [mailto:media-workshop- [email protected]] On Behalf Of Sylwester Nawrocki
Sent: Monday, October 22, 2012 12:53 PM
To: Laurent Pinchart
Cc: [email protected]; linux-media
Subject: Re: [media-workshop] Tentative Agenda for the November workshop

Hi Laurent,

Quoted 6 lines · Laurent Pinchart

Hello,

Quoted 3 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8,

2012.

Quoted 9 lines
Quoted 3 lines

If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 3 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers,

both for

Quoted 11 lines
Quoted 10 lines

staging and mainline acceptance: which frameworks to use,
v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

--
Regards,
Sylwester

_______________________________________________
media-workshop mailing list
[email protected]
http://www.linuxtv.org/cgi-bin/mailman/listinfo/media-workshop

#4 lore raw

Hi,

Quoted 5 lines · Alain VOLMAT

Hi all,

Could someone summaries very rapidly what is this create/select context stuff ? For now I do not plan to be in Barcelona more than 1 day but at the same time don't want to miss something that might be useful for us.

Please see this thread for more details:
http://www.mail-archive.com/[email protected]/msg52168.html

This is about creating, selecting device configuration contexts and handling e.g. camera modes like viewfinder and still capture. Currently only mem-to-mem devices in V4L2 API are allowed to support multiple device contexts, and those are per file handle.

I hope this clarifies it a bit for you.

--
Regards,
Sylwester

#5 lore raw
In reply to Sylwester Nawrocki

Hi Sylwester,

Quoted 27 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 26 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 15 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for

staging and mainline acceptance: which frameworks to use, v4l2-compliance,

etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 8 lines
Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

Signature · 3 lines
Regards,

Laurent Pinchart
#6 lore raw
Quoted 34 lines · On Mon October 22 2012 13:18:46 Laurent Pinchart wrote:

Hi Sylwester,

Quoted 31 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 29 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 8 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for

staging and mainline acceptance: which frameworks to use, v4l2-compliance,

Quoted 7 lines

etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

Quoted 8 lines
Quoted 4 lines

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I would be, but the problem is that the conference is also interesting. The only day I have really available is the Friday *after* the summit.

Regards,

Hans

#7 lore raw
Quoted 38 lines · On Monday 22 October 2012 14:06:06 Hans Verkuil wrote:
Quoted 37 lines · On Mon October 22 2012 13:18:46 Laurent Pinchart wrote:
Quoted 35 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 25 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 6 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance,

Quoted 8 lines

etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

Quoted 5 lines
Quoted 3 lines

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I would be, but the problem is that the conference is also interesting.

More interesting than a brainstorming session about hardware contexts ? ;-) There's of course talks I want to attend, but I can probably skip some of them.

Quoted 1 line

The only day I have really available is the Friday *after* the summit.

We'll probably need several brainstorming sessions anyway. I'd like to organize one before the media summit though, as we'll have limited time to discuss the topic during the summit, which doesn't suit brainstorming sessions very well.

Signature · 3 lines
Regards,

Laurent Pinchart
#8 lore raw
Quoted 49 lines · On Tue October 23 2012 03:03:35 Laurent Pinchart wrote:
Quoted 38 lines · On Monday 22 October 2012 14:06:06 Hans Verkuil wrote:
Quoted 37 lines · On Mon October 22 2012 13:18:46 Laurent Pinchart wrote:
Quoted 35 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 25 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 6 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance,

Quoted 8 lines

etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

Quoted 5 lines
Quoted 3 lines

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I would be, but the problem is that the conference is also interesting.

More interesting than a brainstorming session about hardware contexts ? ;-) There's of course talks I want to attend, but I can probably skip some of them.

Quoted 6 lines
Quoted 1 line

The only day I have really available is the Friday *after* the summit.

We'll probably need several brainstorming sessions anyway. I'd like to organize one before the media summit though, as we'll have limited time to discuss the topic during the summit, which doesn't suit brainstorming sessions very well.

Sylwester, would Samsung be able to prepare for a brainstorming session on Monday or Tuesday? Both Laurent and myself have presentations on Wednesday, so that's not the best day for such a session.

Do you think we should do a half-day or a full day session on this?

Regards,

Hans

#9 lore raw

Hi Hans,

Quoted 55 lines · On Tuesday 23 October 2012 08:46:21 Hans Verkuil wrote:
Quoted 47 lines · On Tue October 23 2012 03:03:35 Laurent Pinchart wrote:
Quoted 36 lines · On Monday 22 October 2012 14:06:06 Hans Verkuil wrote:
Quoted 35 lines · On Mon October 22 2012 13:18:46 Laurent Pinchart wrote:
Quoted 33 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 23 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 4 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which

Quoted 8 lines

frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

Quoted 5 lines
Quoted 3 lines

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I would be, but the problem is that the conference is also interesting.

More interesting than a brainstorming session about hardware contexts ? ;-) There's of course talks I want to attend, but I can probably skip some of them.

Quoted 6 lines
Quoted 1 line

The only day I have really available is the Friday *after* the summit.

We'll probably need several brainstorming sessions anyway. I'd like to organize one before the media summit though, as we'll have limited time to discuss the topic during the summit, which doesn't suit brainstorming sessions very well.

Quoted 5 lines

Sylwester, would Samsung be able to prepare for a brainstorming session on Monday or Tuesday? Both Laurent and myself have presentations on Wednesday, so that's not the best day for such a session.

Do you think we should do a half-day or a full day session on this?

Half a day should be more than enough to start with. The topic is quite complex, and we'll need to sleep over it, several times. A full day would just result in brain overheat. I was thinking more in the line of starting our thought process, so maybe twice an hour or two hours would be good. That would allow us to attend the ELCE talks as well :-) (there's definitely a couple of them that I would like to listen to).

Signature · 3 lines
Regards,

Laurent Pinchart
#10 lore raw

Hi Hans, Laurent,

Quoted 51 lines · Laurent Pinchart
Quoted 50 lines · On Tuesday 23 October 2012 08:46:21 Hans Verkuil wrote:
Quoted 49 lines · On Tue October 23 2012 03:03:35 Laurent Pinchart wrote:
Quoted 36 lines · On Monday 22 October 2012 14:06:06 Hans Verkuil wrote:
Quoted 35 lines · On Mon October 22 2012 13:18:46 Laurent Pinchart wrote:
Quoted 33 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 23 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 4 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which

Quoted 8 lines

frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 3 lines

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

Quoted 5 lines
Quoted 3 lines

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I would be, but the problem is that the conference is also interesting.

More interesting than a brainstorming session about hardware contexts ? ;-) There's of course talks I want to attend, but I can probably skip some of them.

Quoted 1 line

The only day I have really available is the Friday *after* the summit.

Quoted 8 lines
Quoted 8 lines
Quoted 4 lines

We'll probably need several brainstorming sessions anyway. I'd like to organize one before the media summit though, as we'll have limited time to discuss the topic during the summit, which doesn't suit brainstorming sessions very well.

Sylwester, would Samsung be able to prepare for a brainstorming session on Monday or Tuesday? Both Laurent and myself have presentations on Wednesday, so that's not the best day for such a session.

Kamil has presentation on Tuesday so there would be only Monday left.

Quoted 8 lines
Quoted 1 line

Do you think we should do a half-day or a full day session on this?

Half a day should be more than enough to start with. The topic is quite complex, and we'll need to sleep over it, several times. A full day would just result in brain overheat. I was thinking more in the line of starting our thought process, so maybe twice an hour or two hours would be good. That would allow us to attend the ELCE talks as well :-) (there's definitely a couple of them that I would like to listen to).

I agree, I wouldn't like to loose whole day of the conference for that as well. One, two hours for the starters could be sufficient. So we can possibly agree on some initial idea and could get back to it later. I don't think I have already material for a full day session.

--

Regards,
Sylwester

#11 lore raw

Hi Sylwester,

Quoted 77 lines · On Tuesday 23 October 2012 13:59:01 Sylwester Nawrocki wrote:
Quoted 56 lines · Laurent Pinchart
Quoted 55 lines · On Tuesday 23 October 2012 08:46:21 Hans Verkuil wrote:
Quoted 54 lines · On Tue October 23 2012 03:03:35 Laurent Pinchart wrote:
Quoted 41 lines · On Monday 22 October 2012 14:06:06 Hans Verkuil wrote:
Quoted 40 lines · On Mon October 22 2012 13:18:46 Laurent Pinchart wrote:
Quoted 38 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 23 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 13 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?)

drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)

- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test

(Mauro/Samsung)

Quoted 8 lines
Quoted 4 lines

- Device tree support (Guennadi, not known yet whether this topic

is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

Quoted 5 lines
Quoted 3 lines

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I would be, but the problem is that the conference is also interesting.

More interesting than a brainstorming session about hardware contexts ? ;-) There's of course talks I want to attend, but I can probably skip some of them.

Quoted 1 line

The only day I have really available is the Friday *after* the summit.

Quoted 8 lines
Quoted 8 lines
Quoted 4 lines

We'll probably need several brainstorming sessions anyway. I'd like to organize one before the media summit though, as we'll have limited time to discuss the topic during the summit, which doesn't suit brainstorming sessions very well.

Sylwester, would Samsung be able to prepare for a brainstorming session on Monday or Tuesday? Both Laurent and myself have presentations on Wednesday, so that's not the best day for such a session.

Kamil has presentation on Tuesday so there would be only Monday left.

Quoted 8 lines
Quoted 1 line

Do you think we should do a half-day or a full day session on this?

Half a day should be more than enough to start with. The topic is quite complex, and we'll need to sleep over it, several times. A full day would just result in brain overheat. I was thinking more in the line of starting our thought process, so maybe twice an hour or two hours would be good. That would allow us to attend the ELCE talks as well :-) (there's definitely a couple of them that I would like to listen to).

Quoted 4 lines

I agree, I wouldn't like to loose whole day of the conference for that as well. One, two hours for the starters could be sufficient. So we can possibly agree on some initial idea and could get back to it later. I don't think I have already material for a full day session.

One hour, possibly twice, would have my preference. That shouldn't be too difficult to organize. When will you and Kamil arrive ?

Signature · 3 lines
Regards,

Laurent Pinchart
#12 lore raw

Hi Laurent,

Quoted 15 lines · Laurent Pinchart
Quoted 15 lines
Quoted 3 lines
Quoted 3 lines

Sylwester, would Samsung be able to prepare for a brainstorming session on Monday or Tuesday? Both Laurent and myself have presentations on Wednesday, so that's not the best day for such a session.

Kamil has presentation on Tuesday so there would be only Monday left.

Quoted 8 lines
Quoted 1 line

Do you think we should do a half-day or a full day session on this?

Half a day should be more than enough to start with. The topic is quite complex, and we'll need to sleep over it, several times. A full day would just result in brain overheat. I was thinking more in the line of starting our thought process, so maybe twice an hour or two hours would be good. That would allow us to attend the ELCE talks as well :-) (there's definitely a couple of them that I would like to listen to).

Quoted 7 lines
Quoted 4 lines

I agree, I wouldn't like to loose whole day of the conference for that as well. One, two hours for the starters could be sufficient. So we can possibly agree on some initial idea and could get back to it later. I don't think I have already material for a full day session.

One hour, possibly twice, would have my preference. That shouldn't be too difficult to organize. When will you and Kamil arrive ?

Sounds good to me. We'll arrive on Sunday afternoon, and staying until next Sunday.

--

Regards,
Sylwester

#13 lore raw
Quoted 23 lines · On Thu October 25 2012 10:43:59 Sylwester Nawrocki wrote:

Hi Laurent,

Quoted 20 lines · Laurent Pinchart
Quoted 19 lines
Quoted 3 lines
Quoted 3 lines

Sylwester, would Samsung be able to prepare for a brainstorming session on Monday or Tuesday? Both Laurent and myself have presentations on Wednesday, so that's not the best day for such a session.

Kamil has presentation on Tuesday so there would be only Monday left.

Quoted 8 lines
Quoted 1 line

Do you think we should do a half-day or a full day session on this?

Half a day should be more than enough to start with. The topic is quite complex, and we'll need to sleep over it, several times. A full day would just result in brain overheat. I was thinking more in the line of starting our thought process, so maybe twice an hour or two hours would be good. That would allow us to attend the ELCE talks as well :-) (there's definitely a couple of them that I would like to listen to).

I agree, I wouldn't like to loose whole day of the conference for that as well. One, two hours for the starters could be sufficient. So we can possibly agree on some initial idea and could get back to it later. I don't think I have already material for a full day session.

Quoted 5 lines
Quoted 2 lines

One hour, possibly twice, would have my preference. That shouldn't be too difficult to organize. When will you and Kamil arrive ?

Sounds good to me. We'll arrive on Sunday afternoon, and staying until next Sunday.

I've tried to get a small room for Monday, but they were all gone, so we will have to find some other place in the hotel.

Regards,

Hans

#14 lore raw
In reply to Laurent Pinchart

Hi Laurent

Quoted 34 lines · Laurent Pinchart

Hi Sylwester,

Quoted 31 lines · On Monday 22 October 2012 12:53:02 Sylwester Nawrocki wrote:
Quoted 29 lines · Laurent Pinchart
Quoted 6 lines · On Monday 22 October 2012 10:35:56 Hans Verkuil wrote:

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you Hans for taking care of the agenda.

Quoted 8 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for

staging and mainline acceptance: which frameworks to use, v4l2-compliance,

Quoted 7 lines

etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

This last topic will likely require lots of brainstorming, and thus time. If the schedule permits, would anyone be interested in meeting earlier during the week already ?

Quoted 8 lines
Quoted 4 lines

My intention was to also possibly discuss it with others before the actual media workshop. Would be nice if we could have arranged such a meeting. I'm not sure about the room conditions though. It's probably not a big issue, unless there is really many people interested in that topic.

A small room with a projector would be nice if possible, although not required. Who would be interested in attending a brainstorming session on contexts ?

I'd also be interested to participate.

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

#15 lore raw
In reply to Hans Verkuil
Quoted 6 lines · Hans Verkuil

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Quoted 9 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)

+ asynchronous probing, I guess. It's probably implicitly included though.

Thanks
Guennadi

Quoted 9 lines

- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

For those whose name is behind a topic: please prepare something before the meeting.

We have currently 17 or 18 attendees of a maximum of 25, so there is room for a few more people.

Quoted 9 lines

Regards,

Hans

_______________________________________________
media-workshop mailing list
[email protected]
http://www.linuxtv.org/cgi-bin/mailman/listinfo/media-workshop

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

#16 lore raw

Hi all

Quoted 18 lines · Guennadi Liakhovetski
Quoted 6 lines · Hans Verkuil

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Quoted 9 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)

Quoted 1 line

+ asynchronous probing, I guess. It's probably implicitly included though.

As the meeting approaches, it would be good to have a decision - do we want to discuss DT / async or not? My flights this time are not quite long enough to prepare for the discussion on them;-)

Thanks
Guennadi

Quoted 19 lines
Quoted 9 lines

- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

For those whose name is behind a topic: please prepare something before the meeting.

We have currently 17 or 18 attendees of a maximum of 25, so there is room for a few more people.

Quoted 9 lines

Regards,

Hans

_______________________________________________
media-workshop mailing list
[email protected]
http://www.linuxtv.org/cgi-bin/mailman/listinfo/media-workshop

Quoted 5 lines

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

#17 lore raw
Quoted 22 lines · On Wed October 31 2012 14:12:05 Guennadi Liakhovetski wrote:

Hi all

Quoted 18 lines · Guennadi Liakhovetski
Quoted 15 lines · Hans Verkuil

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)

Quoted 5 lines
Quoted 1 line

+ asynchronous probing, I guess. It's probably implicitly included though.

As the meeting approaches, it would be good to have a decision - do we want to discuss DT / async or not? My flights this time are not quite long enough to prepare for the discussion on them;-)

Looking at the current discussions I think discussing possible async solutions would be very useful. The DT implementation itself seems to be OK, at least I haven't seen any big discussions regarding that.

Regards,

Hans

#18 lore raw
Quoted 26 lines · On Thursday 01 November 2012 17:01:02 Hans Verkuil wrote:
Quoted 25 lines · On Wed October 31 2012 14:12:05 Guennadi Liakhovetski wrote:
Quoted 23 lines · Guennadi Liakhovetski
Quoted 13 lines · Hans Verkuil

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)

Quoted 6 lines

- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)

+ asynchronous probing, I guess. It's probably implicitly included though.

Quoted 7 lines
Quoted 3 lines

As the meeting approaches, it would be good to have a decision - do we want to discuss DT / async or not? My flights this time are not quite long enough to prepare for the discussion on them;-)

Looking at the current discussions I think discussing possible async solutions would be very useful. The DT implementation itself seems to be OK, at least I haven't seen any big discussions regarding that.

Agreed.

Signature · 3 lines
Regards,

Laurent Pinchart
#19 lore raw
Quoted 31 lines · Laurent Pinchart
Quoted 30 lines · On Thursday 01 November 2012 17:01:02 Hans Verkuil wrote:
Quoted 28 lines · On Wed October 31 2012 14:12:05 Guennadi Liakhovetski wrote:
Quoted 21 lines · Guennadi Liakhovetski
Quoted 13 lines · Hans Verkuil

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)

Quoted 6 lines

- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)

Quoted 2 lines

+ asynchronous probing, I guess. It's probably implicitly included though.

As the meeting approaches, it would be good to have a decision - do we want to discuss DT / async or not? My flights this time are not quite long enough to prepare for the discussion on them;-)

Quoted 5 lines
Quoted 3 lines

Looking at the current discussions I think discussing possible async solutions would be very useful. The DT implementation itself seems to be OK, at least I haven't seen any big discussions regarding that.

Agreed.

That was my impression too, the bindings itself look fine in general. At least basic features of hardware are now covered, the not very common ones might be easily covered later when needed.

I did an initial implementation for the s5p-fimc driver, with an I2C/SPI sensor subdev, based on current DT bindings and the (slightly modified) v4l2-of helpers. Relying only on the deferred probing mechanism and not using the notifiers.

It's relatively simple and works without that much changes comparing to the previous non-dt version. Still there are possible races when subdevs are loadable modules. However, the non-dt version has also problems in this respect, as I misinterpreted in the past the get_driver()/put_driver() functions [1]. So that needs to get fixed somehow to make the modules usage reliable.

--
Regards,
Sylwester

[1] http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=commitdiff;h=fde25a9b63b9a3dc91365c394a426ebe64cfc2da

#20 lore raw
In reply to Hans Verkuil

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Regards,
Mauro

#21 lore raw
Quoted 25 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Quoted 8 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

Quoted 35 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

Quoted 8 lines

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

A MAINTAINERS entry should probably be required as well for new drivers.

Regards,

Hans

#22 lore raw

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 39 lines
Quoted 39 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

Quoted 7 lines
Quoted 4 lines

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

Quoted 2 lines

A MAINTAINERS entry should probably be required as well for new drivers.

Agreed.

Regards,
Mauro

#23 lore raw

drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)

	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
	grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
	grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

common/b2c2/b2c2-flexcop.ko    = common/b2c2/flexcop-hw-filter.c common/b2c2/flexcop-sram.c common/b2c2/flexcop-eeprom.c common/b2c2/flexcop-misc.c common/b2c2/flexcop.c common/b2c2/flexcop-fe-tuner.c common/b2c2/flexcop-i2c.c
common/siano/smsdvb.ko         = common/siano/smsdvb.c
common/siano/smsir.ko          = common/siano/smsir.c
common/siano/smsmdtv.ko        = common/siano/smscoreapi.c common/siano/sms-cards.c common/siano/smsendian.c
dvb-frontends/atbm8830.ko      = dvb-frontends/atbm8830.c
dvb-frontends/au8522_common.ko = dvb-frontends/au8522_common.c
dvb-frontends/au8522_decoder.ko = dvb-frontends/au8522_decoder.c
dvb-frontends/au8522_dig.ko    = dvb-frontends/au8522_dig.c
dvb-frontends/bcm3510.ko       = dvb-frontends/bcm3510.c
dvb-frontends/cx22700.ko       = dvb-frontends/cx22700.c
dvb-frontends/cx22702.ko       = dvb-frontends/cx22702.c
dvb-frontends/cx24110.ko       = dvb-frontends/cx24110.c
dvb-frontends/cx24113.ko       = dvb-frontends/cx24113.c
dvb-frontends/cx24116.ko       = dvb-frontends/cx24116.c
dvb-frontends/cx24123.ko       = dvb-frontends/cx24123.c
dvb-frontends/dib0070.ko       = dvb-frontends/dib0070.c
dvb-frontends/dib0090.ko       = dvb-frontends/dib0090.c
dvb-frontends/dib3000mb.ko     = dvb-frontends/dib3000mb.c
dvb-frontends/dib3000mc.ko     = dvb-frontends/dib3000mc.c
dvb-frontends/dib7000m.ko      = dvb-frontends/dib7000m.c
dvb-frontends/dib7000p.ko      = dvb-frontends/dib7000p.c
dvb-frontends/dib8000.ko       = dvb-frontends/dib8000.c
dvb-frontends/dib9000.ko       = dvb-frontends/dib9000.c
dvb-frontends/dibx000_common.ko = dvb-frontends/dibx000_common.c
dvb-frontends/drxd.ko          = dvb-frontends/drxd_firm.c dvb-frontends/drxd_hard.c
dvb-frontends/drxk.ko          = dvb-frontends/drxk_hard.c
dvb-frontends/ds3000.ko        = dvb-frontends/ds3000.c
dvb-frontends/dvb_dummy_fe.ko  = dvb-frontends/dvb_dummy_fe.c
dvb-frontends/dvb-pll.ko       = dvb-frontends/dvb-pll.c
dvb-frontends/isl6405.ko       = dvb-frontends/isl6405.c
dvb-frontends/isl6421.ko       = dvb-frontends/isl6421.c
dvb-frontends/isl6423.ko       = dvb-frontends/isl6423.c
dvb-frontends/it913x-fe.ko     = dvb-frontends/it913x-fe.c
dvb-frontends/itd1000.ko       = dvb-frontends/itd1000.c
dvb-frontends/ix2505v.ko       = dvb-frontends/ix2505v.c
dvb-frontends/l64781.ko        = dvb-frontends/l64781.c
dvb-frontends/lgdt330x.ko      = dvb-frontends/lgdt330x.c
dvb-frontends/lgs8gl5.ko       = dvb-frontends/lgs8gl5.c
dvb-frontends/lgs8gxx.ko       = dvb-frontends/lgs8gxx.c
dvb-frontends/lnbp21.ko        = dvb-frontends/lnbp21.c
dvb-frontends/lnbp22.ko        = dvb-frontends/lnbp22.c
dvb-frontends/m88rs2000.ko     = dvb-frontends/m88rs2000.c
dvb-frontends/mb86a16.ko       = dvb-frontends/mb86a16.c
dvb-frontends/mb86a20s.ko      = dvb-frontends/mb86a20s.c
dvb-frontends/mt312.ko         = dvb-frontends/mt312.c
dvb-frontends/mt352.ko         = dvb-frontends/mt352.c
dvb-frontends/nxt200x.ko       = dvb-frontends/nxt200x.c
dvb-frontends/nxt6000.ko       = dvb-frontends/nxt6000.c
dvb-frontends/or51132.ko       = dvb-frontends/or51132.c
dvb-frontends/or51211.ko       = dvb-frontends/or51211.c
dvb-frontends/s5h1409.ko       = dvb-frontends/s5h1409.c
dvb-frontends/s5h1411.ko       = dvb-frontends/s5h1411.c
dvb-frontends/s5h1420.ko       = dvb-frontends/s5h1420.c
dvb-frontends/s5h1432.ko       = dvb-frontends/s5h1432.c
dvb-frontends/s921.ko          = dvb-frontends/s921.c
dvb-frontends/si21xx.ko        = dvb-frontends/si21xx.c
dvb-frontends/sp8870.ko        = dvb-frontends/sp8870.c
dvb-frontends/sp887x.ko        = dvb-frontends/sp887x.c
dvb-frontends/stb0899.ko       = dvb-frontends/stb0899_drv.c dvb-frontends/stb0899_algo.c
dvb-frontends/stb6000.ko       = dvb-frontends/stb6000.c
dvb-frontends/stb6100.ko       = dvb-frontends/stb6100.c
dvb-frontends/stv0288.ko       = dvb-frontends/stv0288.c
dvb-frontends/stv0297.ko       = dvb-frontends/stv0297.c
dvb-frontends/stv0299.ko       = dvb-frontends/stv0299.c
dvb-frontends/stv0367.ko       = dvb-frontends/stv0367.c
dvb-frontends/stv0900.ko       = dvb-frontends/stv0900_core.c dvb-frontends/stv0900_sw.c
dvb-frontends/stv090x.ko       = dvb-frontends/stv090x.c
dvb-frontends/stv6110.ko       = dvb-frontends/stv6110.c
dvb-frontends/stv6110x.ko      = dvb-frontends/stv6110x.c
dvb-frontends/tda10021.ko      = dvb-frontends/tda10021.c
dvb-frontends/tda10023.ko      = dvb-frontends/tda10023.c
dvb-frontends/tda10048.ko      = dvb-frontends/tda10048.c
dvb-frontends/tda1004x.ko      = dvb-frontends/tda1004x.c
dvb-frontends/tda10086.ko      = dvb-frontends/tda10086.c
dvb-frontends/tda18271c2dd.ko  = dvb-frontends/tda18271c2dd.c
dvb-frontends/tda665x.ko       = dvb-frontends/tda665x.c
dvb-frontends/tda8083.ko       = dvb-frontends/tda8083.c
dvb-frontends/tda8261.ko       = dvb-frontends/tda8261.c
dvb-frontends/tda826x.ko       = dvb-frontends/tda826x.c
dvb-frontends/tua6100.ko       = dvb-frontends/tua6100.c
dvb-frontends/ves1820.ko       = dvb-frontends/ves1820.c
dvb-frontends/ves1x93.ko       = dvb-frontends/ves1x93.c
dvb-frontends/zl10036.ko       = dvb-frontends/zl10036.c
dvb-frontends/zl10039.ko       = dvb-frontends/zl10039.c
dvb-frontends/zl10353.ko       = dvb-frontends/zl10353.c
firewire/firedtv.ko            = +
firewire/firedtv-rc.ko         = firewire/firedtv-rc.c
i2c/ad9389b.ko                 = i2c/ad9389b.c
i2c/adp1653.ko                 = i2c/adp1653.c
i2c/adv7170.ko                 = i2c/adv7170.c
i2c/adv7175.ko                 = i2c/adv7175.c
i2c/adv7180.ko                 = i2c/adv7180.c
i2c/adv7183.ko                 = i2c/adv7183.c
i2c/adv7343.ko                 = i2c/adv7343.c
i2c/adv7393.ko                 = i2c/adv7393.c
i2c/adv7604.ko                 = i2c/adv7604.c
i2c/ak881x.ko                  = i2c/ak881x.c
i2c/aptina-pll.ko              = i2c/aptina-pll.c
i2c/as3645a.ko                 = i2c/as3645a.c
i2c/bt819.ko                   = i2c/bt819.c
i2c/bt856.ko                   = i2c/bt856.c
i2c/bt866.ko                   = i2c/bt866.c
i2c/btcx-risc.ko               = i2c/btcx-risc.c
i2c/cs5345.ko                  = i2c/cs5345.c
i2c/cs53l32a.ko                = i2c/cs53l32a.c
i2c/cx2341x.ko                 = i2c/cx2341x.c
i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/ir-kbd-i2c.ko              = i2c/ir-kbd-i2c.c
i2c/ks0127.ko                  = i2c/ks0127.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/mt9m032.ko                 = i2c/mt9m032.c
i2c/mt9p031.ko                 = i2c/mt9p031.c
i2c/mt9t001.ko                 = i2c/mt9t001.c
i2c/mt9v011.ko                 = i2c/mt9v011.c
i2c/mt9v032.ko                 = i2c/mt9v032.c
i2c/noon010pc30.ko             = i2c/noon010pc30.c
i2c/s5k4ecgx.ko                = i2c/s5k4ecgx.c
i2c/s5k6aa.ko                  = i2c/s5k6aa.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/saa7185.ko                 = i2c/saa7185.c
i2c/saa7191.ko                 = i2c/saa7191.c
i2c/smiapp-pll.ko              = i2c/smiapp-pll.c
i2c/smiapp/smiapp.ko           = i2c/smiapp/smiapp-core.c i2c/smiapp/smiapp-regs.c i2c/smiapp/smiapp-quirk.c i2c/smiapp/smiapp-limits.c
i2c/sr030pc30.ko               = i2c/sr030pc30.c
i2c/tcm825x.ko                 = i2c/tcm825x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/ths7303.ko                 = i2c/ths7303.c
i2c/tlv320aic23b.ko            = i2c/tlv320aic23b.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
i2c/tvp514x.ko                 = i2c/tvp514x.c
i2c/tvp5150.ko                 = i2c/tvp5150.c
i2c/tvp7002.ko                 = i2c/tvp7002.c
i2c/upd64031a.ko               = i2c/upd64031a.c
i2c/upd64083.ko                = i2c/upd64083.c
i2c/vp27smpx.ko                = i2c/vp27smpx.c
i2c/vpx3220.ko                 = i2c/vpx3220.c
i2c/vs6624.ko                  = i2c/vs6624.c
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
mmc/siano/smssdio.ko           = mmc/siano/smssdio.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
parport/pms.ko                 = parport/pms.c
parport/w9966.ko               = parport/w9966.c
pci/b2c2/b2c2-flexcop-pci.ko   = pci/b2c2/flexcop-pci.c pci/b2c2/flexcop-dma.c
pci/bt8xx/bt878.ko             = pci/bt8xx/bt878.c
pci/bt8xx/dst_ca.ko            = pci/bt8xx/dst_ca.c
pci/bt8xx/dst.ko               = pci/bt8xx/dst.c
pci/bt8xx/dvb-bt8xx.ko         = pci/bt8xx/dvb-bt8xx.c
pci/cx23885/altera-ci.ko       = pci/cx23885/altera-ci.c
pci/cx23885/cx23885.ko         = pci/cx23885/cx23885-cards.c pci/cx23885/cx23885-video.c pci/cx23885/cx23885-vbi.c pci/cx23885/cx23885-core.c pci/cx23885/cx23885-i2c.c pci/cx23885/cx23885-dvb.c pci/cx23885/cx23885-417.c pci/cx23885/cx23885-ioctl.c pci/cx23885/cx23885-ir.c pci/cx23885/cx23885-av.c pci/cx23885/cx23885-input.c pci/cx23885/cx23888-ir.c pci/cx23885/netup-init.c pci/cx23885/cimax2.c pci/cx23885/netup-eeprom.c pci/cx23885/cx23885-f300.c pci/cx23885/cx23885-alsa.c
pci/cx25821/cx25821-alsa.ko    = pci/cx25821/cx25821-alsa.c
pci/cx25821/cx25821.ko         = pci/cx25821/cx25821-core.c pci/cx25821/cx25821-cards.c pci/cx25821/cx25821-i2c.c pci/cx25821/cx25821-gpio.c pci/cx25821/cx25821-medusa-video.c pci/cx25821/cx25821-video.c pci/cx25821/cx25821-video-upstream.c pci/cx25821/cx25821-video-upstream-ch2.c pci/cx25821/cx25821-audio-upstream.c
pci/cx88/cx8800.ko             = pci/cx88/cx88-video.c pci/cx88/cx88-vbi.c
pci/cx88/cx8802.ko             = pci/cx88/cx88-mpeg.c
pci/cx88/cx88-alsa.ko          = pci/cx88/cx88-alsa.c
pci/cx88/cx88-blackbird.ko     = pci/cx88/cx88-blackbird.c
pci/cx88/cx88-dvb.ko           = pci/cx88/cx88-dvb.c
pci/cx88/cx88-vp3054-i2c.ko    = pci/cx88/cx88-vp3054-i2c.c
pci/cx88/cx88xx.ko             = pci/cx88/cx88-cards.c pci/cx88/cx88-core.c pci/cx88/cx88-i2c.c pci/cx88/cx88-tvaudio.c pci/cx88/cx88-dsp.c pci/cx88/cx88-input.c
pci/ddbridge/ddbridge.ko       = pci/ddbridge/ddbridge-core.c
pci/dm1105/dm1105.ko           = pci/dm1105/dm1105.c
pci/mantis/hopper.ko           = pci/mantis/hopper_cards.c pci/mantis/hopper_vp3028.c
pci/mantis/mantis_core.ko      = pci/mantis/mantis_ioc.c pci/mantis/mantis_uart.c pci/mantis/mantis_dma.c pci/mantis/mantis_pci.c pci/mantis/mantis_i2c.c pci/mantis/mantis_dvb.c pci/mantis/mantis_evm.c pci/mantis/mantis_hif.c pci/mantis/mantis_ca.c pci/mantis/mantis_pcmcia.c pci/mantis/mantis_input.c
pci/mantis/mantis.ko           = pci/mantis/mantis_cards.c pci/mantis/mantis_vp1033.c pci/mantis/mantis_vp1034.c pci/mantis/mantis_vp1041.c pci/mantis/mantis_vp2033.c pci/mantis/mantis_vp2040.c pci/mantis/mantis_vp3030.c
pci/ngene/ngene.ko             = pci/ngene/ngene-core.c pci/ngene/ngene-i2c.c pci/ngene/ngene-cards.c pci/ngene/ngene-dvb.c
pci/pluto2/pluto2.ko           = pci/pluto2/pluto2.c
pci/pt1/earth-pt1.ko           = pci/pt1/pt1.c pci/pt1/va1j5jf8007s.c pci/pt1/va1j5jf8007t.c
pci/saa7134/saa6752hs.ko       = pci/saa7134/saa6752hs.c
pci/saa7134/saa7134-alsa.ko    = pci/saa7134/saa7134-alsa.c
pci/saa7134/saa7134-dvb.ko     = pci/saa7134/saa7134-dvb.c
pci/saa7134/saa7134-empress.ko = pci/saa7134/saa7134-empress.c
pci/saa7134/saa7134-input.ko   = pci/saa7134/saa7134-input.c
pci/saa7134/saa7134.ko         = +
pci/saa7164/saa7164.ko         = pci/saa7164/saa7164-cards.c pci/saa7164/saa7164-core.c pci/saa7164/saa7164-i2c.c pci/saa7164/saa7164-dvb.c pci/saa7164/saa7164-fw.c pci/saa7164/saa7164-bus.c pci/saa7164/saa7164-cmd.c pci/saa7164/saa7164-api.c pci/saa7164/saa7164-buffer.c pci/saa7164/saa7164-encoder.c pci/saa7164/saa7164-vbi.c
pci/sta2x11/sta2x11_vip.ko     = pci/sta2x11/sta2x11_vip.c
pci/ttpci/budget-av.ko         = pci/ttpci/budget-av.c
pci/ttpci/budget-ci.ko         = pci/ttpci/budget-ci.c
pci/ttpci/budget-core.ko       = pci/ttpci/budget-core.c
pci/ttpci/budget.ko            = pci/ttpci/budget.c
pci/ttpci/budget-patch.ko      = pci/ttpci/budget-patch.c
pci/ttpci/dvb-ttpci.ko         = pci/ttpci/av7110_ir.c pci/ttpci/av7110_hw.c pci/ttpci/av7110_v4l.c pci/ttpci/av7110_av.c pci/ttpci/av7110_ca.c pci/ttpci/av7110.c pci/ttpci/av7110_ipack.c
pci/ttpci/ttpci-eeprom.ko      = pci/ttpci/ttpci-eeprom.c
platform/arv.ko                = platform/arv.c

platform/blackfin/bfin_video_capture.ko = platform/blackfin/bfin_capture.c platform/blackfin/ppi.c
platform/coda.ko = platform/coda.c
platform/davinci/dm355_ccdc.ko = platform/davinci/dm355_ccdc.c platform/davinci/dm644x_ccdc.ko = platform/davinci/dm644x_ccdc.c
platform/davinci/isif.ko = platform/davinci/isif.c
platform/davinci/vpbe_display.ko = platform/davinci/vpbe_display.c

platform/davinci/vpbe.ko       = platform/davinci/vpbe.c
platform/davinci/vpbe_osd.ko   = platform/davinci/vpbe_osd.c
platform/davinci/vpbe_venc.ko  = platform/davinci/vpbe_venc.c

platform/davinci/vpfe_capture.ko = platform/davinci/vpfe_capture.c
platform/davinci/vpif_capture.ko = platform/davinci/vpif_capture.c
platform/davinci/vpif_display.ko = platform/davinci/vpif_display.c
platform/davinci/vpif.ko = platform/davinci/vpif.c
platform/davinci/vpss.ko = platform/davinci/vpss.c
platform/exynos-gsc/exynos-gsc.ko = platform/exynos-gsc/gsc-core.c platform/exynos-gsc/gsc-m2m.c platform/exynos-gsc/gsc-regs.c

platform/fsl-viu.ko            = platform/fsl-viu.c
platform/indycam.ko            = platform/indycam.c
platform/m2m-deinterlace.ko    = platform/m2m-deinterlace.c
platform/mem2mem_testdev.ko    = platform/mem2mem_testdev.c
platform/mx2_emmaprp.ko        = platform/mx2_emmaprp.c
platform/omap2cam.ko           = platform/omap24xxcam.c platform/omap24xxcam-dma.c
platform/omap/omap-vout.ko     = +
platform/omap/omap_vout_vrfb.ko = platform/omap/omap_vout_vrfb.c
platform/s5p-g2d/s5p-g2d.ko    = platform/s5p-g2d/g2d.c platform/s5p-g2d/g2d-hw.c
platform/s5p-jpeg/s5p-jpeg.ko  = platform/s5p-jpeg/jpeg-core.c
platform/sh_vou.ko             = platform/sh_vou.c
platform/timblogiw.ko          = platform/timblogiw.c
platform/via-camera.ko         = platform/via-camera.c
platform/vino.ko               = platform/vino.c
platform/vivi.ko               = platform/vivi.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-aztech.ko          = radio/radio-aztech.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-sf16fmi.ko         = radio/radio-sf16fmi.c
radio/radio-sf16fmr2.ko        = radio/radio-sf16fmr2.c
radio/radio-shark.ko           = radio/radio-shark.c
radio/radio-si4713.ko          = radio/radio-si4713.c
radio/radio-tea5764.ko         = radio/radio-tea5764.c
radio/radio-terratec.ko        = radio/radio-terratec.c
radio/radio-timb.ko            = radio/radio-timb.c
radio/radio-trust.ko           = radio/radio-trust.c
radio/radio-typhoon.ko         = radio/radio-typhoon.c
radio/radio-wl1273.ko          = radio/radio-wl1273.c
radio/radio-zoltrix.ko         = radio/radio-zoltrix.c
radio/saa7706h.ko              = radio/saa7706h.c
radio/shark2.ko                = radio/radio-shark2.c radio/radio-tea5777.c
radio/si470x/radio-i2c-si470x.ko = radio/si470x/radio-si470x-i2c.c radio/si470x/radio-si470x-common.c
radio/si470x/radio-usb-si470x.ko = radio/si470x/radio-si470x-usb.c radio/si470x/radio-si470x-common.c
radio/si4713-i2c.ko            = radio/si4713-i2c.c
radio/tef6862.ko               = radio/tef6862.c
radio/wl128x/fm_drv.ko         = radio/wl128x/fmdrv_common.c radio/wl128x/fmdrv_rx.c radio/wl128x/fmdrv_tx.c radio/wl128x/fmdrv_v4l2.c
rc/ati_remote.ko               = rc/ati_remote.c
rc/fintek-cir.ko               = rc/fintek-cir.c
rc/gpio-ir-recv.ko             = rc/gpio-ir-recv.c
rc/iguanair.ko                 = rc/iguanair.c
rc/imon.ko                     = rc/imon.c
rc/ir-jvc-decoder.ko           = rc/ir-jvc-decoder.c
rc/ir-lirc-codec.ko            = rc/ir-lirc-codec.c
rc/ir-mce_kbd-decoder.ko       = rc/ir-mce_kbd-decoder.c
rc/ir-nec-decoder.ko           = rc/ir-nec-decoder.c
rc/ir-rc5-decoder.ko           = rc/ir-rc5-decoder.c
rc/ir-rc5-sz-decoder.ko        = rc/ir-rc5-sz-decoder.c
rc/ir-rc6-decoder.ko           = rc/ir-rc6-decoder.c
rc/ir-rx51.ko                  = rc/ir-rx51.c
rc/ir-sanyo-decoder.ko         = rc/ir-sanyo-decoder.c
rc/ir-sony-decoder.ko          = rc/ir-sony-decoder.c
rc/ite-cir.ko                  = rc/ite-cir.c
rc/lirc_dev.ko                 = rc/lirc_dev.c
rc/mceusb.ko                   = rc/mceusb.c
rc/nuvoton-cir.ko              = rc/nuvoton-cir.c
rc/rc-loopback.ko              = rc/rc-loopback.c
rc/redrat3.ko                  = rc/redrat3.c
rc/streamzap.ko                = rc/streamzap.c
rc/ttusbir.ko                  = rc/ttusbir.c
tuners/fc0012.ko               = tuners/fc0012.c
tuners/fc0013.ko               = tuners/fc0013.c
tuners/max2165.ko              = tuners/max2165.c
tuners/mc44s803.ko             = tuners/mc44s803.c
tuners/mt2060.ko               = tuners/mt2060.c
tuners/mt2063.ko               = tuners/mt2063.c
tuners/mt20xx.ko               = tuners/mt20xx.c
tuners/mt2131.ko               = tuners/mt2131.c
tuners/mt2266.ko               = tuners/mt2266.c
tuners/mxl5005s.ko             = tuners/mxl5005s.c
tuners/tda827x.ko              = tuners/tda827x.c
tuners/tda9887.ko              = tuners/tda9887.c
tuners/tea5761.ko              = tuners/tea5761.c
tuners/tea5767.ko              = tuners/tea5767.c
tuners/tuner-simple.ko         = tuners/tuner-simple.c
tuners/tuner-types.ko          = tuners/tuner-types.c
tuners/tuner-xc2028.ko         = tuners/tuner-xc2028.c
tuners/xc4000.ko               = tuners/xc4000.c
tuners/xc5000.ko               = tuners/xc5000.c
usb/au0828/au0828.ko           = usb/au0828/au0828-core.c usb/au0828/au0828-i2c.c usb/au0828/au0828-cards.c usb/au0828/au0828-dvb.c usb/au0828/au0828-video.c usb/au0828/au0828-vbi.c
usb/b2c2/b2c2-flexcop-usb.ko   = usb/b2c2/flexcop-usb.c
usb/cpia2/cpia2.ko             = usb/cpia2/cpia2_v4l.c usb/cpia2/cpia2_usb.c usb/cpia2/cpia2_core.c
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +
usb/dvb-usb/dvb-usb-a800.ko    = usb/dvb-usb/a800.c
usb/dvb-usb/dvb-usb-af9005.ko  = usb/dvb-usb/af9005.c usb/dvb-usb/af9005-fe.c

usb/dvb-usb/dvb-usb-af9005-remote.ko = usb/dvb-usb/af9005-remote.c usb/dvb-usb/dvb-usb-az6027.ko = usb/dvb-usb/az6027.c usb/dvb-usb/dvb-usb-cinergyT2.ko = usb/dvb-usb/cinergyT2-core.c usb/dvb-usb/cinergyT2-fe.c
usb/dvb-usb/dvb-usb-cxusb.ko = usb/dvb-usb/cxusb.c
usb/dvb-usb/dvb-usb-dib0700.ko = usb/dvb-usb/dib0700_core.c usb/dvb-usb/dib0700_devices.c usb/dvb-usb/dvb-usb-dibusb-common.ko = usb/dvb-usb/dibusb-common.c usb/dvb-usb/dvb-usb-dibusb-mb.ko = usb/dvb-usb/dibusb-mb.c usb/dvb-usb/dvb-usb-dibusb-mc.ko = usb/dvb-usb/dibusb-mc.c usb/dvb-usb/dvb-usb-digitv.ko = usb/dvb-usb/digitv.c usb/dvb-usb/dvb-usb-dtt200u.ko = usb/dvb-usb/dtt200u.c usb/dvb-usb/dtt200u-fe.c usb/dvb-usb/dvb-usb-dtv5100.ko = usb/dvb-usb/dtv5100.c

usb/dvb-usb/dvb-usb-dw2102.ko  = usb/dvb-usb/dw2102.c
usb/dvb-usb/dvb-usb-friio.ko   = usb/dvb-usb/friio.c usb/dvb-usb/friio-fe.c
usb/dvb-usb/dvb-usb-gp8psk.ko  = usb/dvb-usb/gp8psk.c usb/dvb-usb/gp8psk-fe.c
usb/dvb-usb/dvb-usb.ko         = usb/dvb-usb/dvb-usb-dvb.c usb/dvb-usb/dvb-usb-remote.c usb/dvb-usb/usb-urb.c usb/dvb-usb/dvb-usb-firmware.c usb/dvb-usb/dvb-usb-init.c usb/dvb-usb/dvb-usb-urb.c usb/dvb-usb/dvb-usb-i2c.c
usb/dvb-usb/dvb-usb-m920x.ko   = usb/dvb-usb/m920x.c

usb/dvb-usb/dvb-usb-nova-t-usb2.ko = usb/dvb-usb/nova-t-usb2.c
usb/dvb-usb/dvb-usb-opera.ko = usb/dvb-usb/opera1.c
usb/dvb-usb/dvb-usb-pctv452e.ko = usb/dvb-usb/pctv452e.c usb/dvb-usb/dvb-usb-technisat-usb2.ko = usb/dvb-usb/technisat-usb2.c usb/dvb-usb/dvb-usb-ttusb2.ko = usb/dvb-usb/ttusb2.c usb/dvb-usb/dvb-usb-umt-010.ko = usb/dvb-usb/umt-010.c usb/dvb-usb/dvb-usb-vp702x.ko = usb/dvb-usb/vp702x.c usb/dvb-usb/vp702x-fe.c usb/dvb-usb/dvb-usb-vp7045.ko = usb/dvb-usb/vp7045.c usb/dvb-usb/vp7045-fe.c usb/dvb-usb-v2/dvb-usb-az6007.ko = usb/dvb-usb-v2/az6007.c usb/dvb-usb-v2/dvb-usb-gl861.ko = usb/dvb-usb-v2/gl861.c usb/dvb-usb-v2/dvb-usb-it913x.ko = usb/dvb-usb-v2/it913x.c usb/dvb-usb-v2/dvb-usb-lmedm04.ko = usb/dvb-usb-v2/lmedm04.c

usb/em28xx/em28xx-alsa.ko      = usb/em28xx/em28xx-audio.c
usb/em28xx/em28xx-dvb.ko       = usb/em28xx/em28xx-dvb.c
usb/em28xx/em28xx.ko           = usb/em28xx/em28xx-core.c usb/em28xx/em28xx-vbi.c usb/em28xx/em28xx-video.c usb/em28xx/em28xx-i2c.c usb/em28xx/em28xx-cards.c
usb/em28xx/em28xx-rc.ko        = usb/em28xx/em28xx-input.c
usb/hdpvr/hdpvr.ko             = usb/hdpvr/hdpvr-control.c usb/hdpvr/hdpvr-core.c usb/hdpvr/hdpvr-video.c usb/hdpvr/hdpvr-i2c.c
usb/pwc/pwc.ko                 = usb/pwc/pwc-dec1.c usb/pwc/pwc-dec23.c usb/pwc/pwc-kiara.c usb/pwc/pwc-timon.c usb/pwc/pwc-if.c usb/pwc/pwc-misc.c usb/pwc/pwc-ctrl.c usb/pwc/pwc-v4l.c usb/pwc/pwc-uncompress.c
usb/s2255/s2255drv.ko          = usb/s2255/s2255drv.c
usb/siano/smsusb.ko            = usb/siano/smsusb.c
usb/stkwebcam/stkwebcam.ko     = usb/stkwebcam/stk-webcam.c usb/stkwebcam/stk-sensor.c
usb/tm6000/tm6000-alsa.ko      = usb/tm6000/tm6000-alsa.c
usb/tm6000/tm6000-dvb.ko       = usb/tm6000/tm6000-dvb.c
usb/tm6000/tm6000.ko           = usb/tm6000/tm6000-cards.c usb/tm6000/tm6000-core.c usb/tm6000/tm6000-i2c.c usb/tm6000/tm6000-video.c usb/tm6000/tm6000-stds.c usb/tm6000/tm6000-input.c
usb/ttusb-budget/dvb-ttusb-budget.ko = usb/ttusb-budget/dvb-ttusb-budget.c
usb/ttusb-dec/ttusbdecfe.ko    = usb/ttusb-dec/ttusbdecfe.c
usb/ttusb-dec/ttusb_dec.ko     = usb/ttusb-dec/ttusb_dec.c
usb/usbvision/usbvision.ko     = usb/usbvision/usbvision-core.c usb/usbvision/usbvision-video.c usb/usbvision/usbvision-i2c.c usb/usbvision/usbvision-cards.c
#24 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Quoted 142 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)

	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
	grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
	grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
i2c/tvp5150.ko                 = i2c/tvp5150.c
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +
usb/hdpvr/hdpvr.ko             = usb/hdpvr/hdpvr-control.c usb/hdpvr/hdpvr-core.c usb/hdpvr/hdpvr-video.c usb/hdpvr/hdpvr-i2c.c
usb/tm6000/tm6000-alsa.ko      = usb/tm6000/tm6000-alsa.c
usb/tm6000/tm6000.ko           = usb/tm6000/tm6000-cards.c usb/tm6000/tm6000-core.c usb/tm6000/tm6000-i2c.c usb/tm6000/tm6000-video.c usb/tm6000/tm6000-stds.c usb/tm6000/tm6000-input.c
usb/usbvision/usbvision.ko     = usb/usbvision/usbvision-core.c usb/usbvision/usbvision-video.c usb/usbvision/usbvision-i2c.c usb/usbvision/usbvision-cards.c

Regards,

Hans

#25 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)

	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
	grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
	grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 12 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

Quoted 4 lines

usb/hdpvr/hdpvr.ko = usb/hdpvr/hdpvr-control.c usb/hdpvr/hdpvr-core.c usb/hdpvr/hdpvr-video.c usb/hdpvr/hdpvr-i2c.c

usb/tm6000/tm6000-alsa.ko = usb/tm6000/tm6000-alsa.c
usb/tm6000/tm6000.ko = usb/tm6000/tm6000-cards.c usb/tm6000/tm6000-core.c usb/tm6000/tm6000-i2c.c usb/tm6000/tm6000-video.c usb/tm6000/tm6000-stds.c usb/tm6000/tm6000-input.c

Just submitted an RFC patch for this one, also as "Odd fixes". Of course, I don't mind if you prefer to take it. Btw, you forgot the tm6000-dvb driver, that it is part of it.

Quoted 5 lines

usb/usbvision/usbvision.ko = usb/usbvision/usbvision-core.c usb/usbvision/usbvision-video.c usb/usbvision/usbvision-i2c.c usb/usbvision/usbvision-cards.c

Regards,

Hans

Regards,
Mauro

#26 lore raw

RE: [media-workshop] drivers without explicit MAINTAINERS entry - was: Re: Tentative Agenda for the November workshop

Thanks Hans and Mauro.

On any of the CX drivers, if we do not have any "maintainer" or "odd fixer", you could add me to the "odd fixer" list.

Rgds,
Palash

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Mauro Carvalho Chehab
Sent: Friday, November 02, 2012 7:35 AM
To: Hans Verkuil
Cc: [email protected]; linux-media
Subject: Re: [media-workshop] drivers without explicit MAINTAINERS entry - was: Re: Tentative Agenda for the November workshop

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 161 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 146 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 115 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 28 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 27 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200 Hans Verkuil
<[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012.
If you have additional things that you want to discuss, or
something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 13 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of
hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind
being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
	Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's
author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers,
even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)

	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
	grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
	grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e 

v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort

Quoted 1 line

without_maint

I excluded the core files from the list, as they don't need any
specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff
below that I can myself be added as "Odd fixes". Yet, I would very
much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 12 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

Quoted 4 lines

usb/hdpvr/hdpvr.ko = usb/hdpvr/hdpvr-control.c usb/hdpvr/hdpvr-core.c usb/hdpvr/hdpvr-video.c usb/hdpvr/hdpvr-i2c.c

usb/tm6000/tm6000-alsa.ko = usb/tm6000/tm6000-alsa.c
usb/tm6000/tm6000.ko = usb/tm6000/tm6000-cards.c usb/tm6000/tm6000-core.c usb/tm6000/tm6000-i2c.c usb/tm6000/tm6000-video.c usb/tm6000/tm6000-stds.c usb/tm6000/tm6000-input.c

Just submitted an RFC patch for this one, also as "Odd fixes".
Of course, I don't mind if you prefer to take it. Btw, you forgot the tm6000-dvb driver, that it is part of it.

Quoted 5 lines

usb/usbvision/usbvision.ko = usb/usbvision/usbvision-core.c usb/usbvision/usbvision-video.c usb/usbvision/usbvision-i2c.c usb/usbvision/usbvision-cards.c

Regards,

Hans

Regards,
Mauro

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http://www.linuxtv.org/cgi-bin/mailman/listinfo/media-workshop

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#27 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

In reply to Mauro Carvalho Chehab

Hi Mauro, Hans, all,

Quoted 211 lines · Mauro Carvalho Chehab

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:

     Supported:   Someone is actually paid to look after this.
     Maintained:  Someone actually looks after it.
     Odd Fixes:   It has a maintainer but they don't have time to do

much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

      $ git show --pretty=email|./scripts/get_maintainer.pl
      Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
      Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
      Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
      Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
      Hans de Goede <[email protected]> (commit_signer:1/7=14%)
      [email protected] (open list:MEDIA INPUT INFRA...)
      [email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

    DIR=$(dirname $0)

    $DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
    grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
    grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 11 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 6 lines
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

I'm very sorry for long silence but i'm ready to take maintainership for radio-mr800. By the way, i think that only fixes will be present for this driver in the future.

Is it possible for driver to have two maintainers or for example one person marked as maintainer and another one marked as "odd fixes" ? I mean i'm interested to be in c/c regarding all email, news, interesting patches for radio-mr800, dsbr100 and usb radio part of si470x but i don't know how to mark it that i want to help with these drivers. I have only dsbr100, mr800 and kworld fm700 (based on si470x) usb radios and i'm ready to test any patches and help as much as i can.
I don't have usb radio for radio-keene.c driver but i probably will take a look how to buy it here..

And i'm also ready to maintain driver radio-ma901.c. I posted patches for this device about two weeks ago. Driver is rather small (first working version) but i hope to add more features there in future.

Best regards and wishes,
Alexey Klimov

#28 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Em Mon, 12 Nov 2012 22:41:57 +0400
Alexey Klimov <[email protected]> escreveu:

Quoted 219 lines

Hi Mauro, Hans, all,

Quoted 215 lines · Mauro Carvalho Chehab

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:

     Supported:   Someone is actually paid to look after this.
     Maintained:  Someone actually looks after it.
     Odd Fixes:   It has a maintainer but they don't have time to do

much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

      $ git show --pretty=email|./scripts/get_maintainer.pl
      Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
      Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
      Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
      Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
      Hans de Goede <[email protected]> (commit_signer:1/7=14%)
      [email protected] (open list:MEDIA INPUT INFRA...)
      [email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

    DIR=$(dirname $0)

    $DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
    grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
    grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 16 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +
Quoted 6 lines
Quoted 2 lines

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

I'm very sorry for long silence but i'm ready to take maintainership for radio-mr800. By the way, i think that only fixes will be present for this driver in the future.

Good. could you please send us a patch for Maintainers then?

Quoted 2 lines

Is it possible for driver to have two maintainers or for example one person marked as maintainer and another one marked as "odd fixes" ?

Well, it is possible to have two maintainers for a driver. A few of them have it, but, AFAIKT, the driver maintainership status should be just one for the entire driver.

Quoted 7 lines

I
mean i'm interested to be in c/c regarding all email, news, interesting patches for radio-mr800, dsbr100 and usb radio part of si470x but i don't know how to mark it that i want to help with these drivers. I have only dsbr100, mr800 and kworld fm700 (based on si470x) usb radios and i'm ready to test any patches and help as much as i can.

If the above drivers have a maintainer, the patch adding you there as another maintainer should be sent by him (or with his ack).

Quoted 6 lines

I don't have usb radio for radio-keene.c driver but i probably will take a look how to buy it here..

And i'm also ready to maintain driver radio-ma901.c. I posted patches for this device about two weeks ago. Driver is rather small (first working version) but i hope to add more features there in future.

Ok. Please send us a maintainership patch for it as well.

Thank you!
Mauro

Quoted 3 lines

Best regards and wishes,
Alexey Klimov

#29 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

In reply to Alexey Klimov

Hi Alexey,

Quoted 226 lines · On Mon November 12 2012 19:41:57 Alexey Klimov wrote:

Hi Mauro, Hans, all,

Quoted 211 lines · Mauro Carvalho Chehab

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:

     Supported:   Someone is actually paid to look after this.
     Maintained:  Someone actually looks after it.
     Odd Fixes:   It has a maintainer but they don't have time to do

much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

      $ git show --pretty=email|./scripts/get_maintainer.pl
      Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
      Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
      Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
      Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
      Hans de Goede <[email protected]> (commit_signer:1/7=14%)
      [email protected] (open list:MEDIA INPUT INFRA...)
      [email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

    DIR=$(dirname $0)

    $DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
    grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
    grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 11 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 6 lines
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

I'm very sorry for long silence but i'm ready to take maintainership for radio-mr800. By the way, i think that only fixes will be present for this driver in the future.

Quoted 8 lines

Is it possible for driver to have two maintainers or for example one person marked as maintainer and another one marked as "odd fixes" ? I mean i'm interested to be in c/c regarding all email, news, interesting patches for radio-mr800, dsbr100 and usb radio part of si470x but i don't know how to mark it that i want to help with these drivers. I have only dsbr100, mr800 and kworld fm700 (based on si470x) usb radios and i'm ready to test any patches and help as much as i can.

I saw that you made a MAINTAINERS entry for radio-mr800, but not for dsbr100 or si470x. Do you want to be the maintainer for those two, or shall I add myself as the 'Odd Fixes' entry? I have hardware for both.

Quoted 2 lines

I don't have usb radio for radio-keene.c driver but i probably will take a look how to buy it here..

I wrote the driver for that one, so I'll be the maintainer for this driver (I'm preparing MAINTAINERS patches as I write this).

Quoted 4 lines

And i'm also ready to maintain driver radio-ma901.c. I posted patches for this device about two weeks ago. Driver is rather small (first working version) but i hope to add more features there in future.

I missed this post, I'll try to do a quick review today.

Did you run v4l2-compliance on this driver? If not, then you should do that (v4l2-compliance -r /dev/radioX) and fix any errors it produces.

Regards,

Hans

#30 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Hi Hans,

Quoted 238 lines · Hans Verkuil

Hi Alexey,

Quoted 226 lines · On Mon November 12 2012 19:41:57 Alexey Klimov wrote:

Hi Mauro, Hans, all,

Quoted 211 lines · Mauro Carvalho Chehab

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:

     Supported:   Someone is actually paid to look after this.
     Maintained:  Someone actually looks after it.
     Odd Fixes:   It has a maintainer but they don't have time to do

much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

      $ git show --pretty=email|./scripts/get_maintainer.pl
      Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
      Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
      Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
      Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
      Hans de Goede <[email protected]> (commit_signer:1/7=14%)
      [email protected] (open list:MEDIA INPUT INFRA...)
      [email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

    DIR=$(dirname $0)

    $DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
    grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
    grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 11 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 6 lines
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

I'm very sorry for long silence but i'm ready to take maintainership for radio-mr800. By the way, i think that only fixes will be present for this driver in the future.

Quoted 8 lines

Is it possible for driver to have two maintainers or for example one person marked as maintainer and another one marked as "odd fixes" ? I mean i'm interested to be in c/c regarding all email, news, interesting patches for radio-mr800, dsbr100 and usb radio part of si470x but i don't know how to mark it that i want to help with these drivers. I have only dsbr100, mr800 and kworld fm700 (based on si470x) usb radios and i'm ready to test any patches and help as much as i can.

Quoted 3 lines

I saw that you made a MAINTAINERS entry for radio-mr800, but not for dsbr100 or si470x. Do you want to be the maintainer for those two, or shall I add myself as the 'Odd Fixes' entry? I have hardware for both.

About si470x. It consists of two parts (usb and i2c interfaces) if i remember correctly.
I have kworld fm700 usb radio only. I saw platforms with radio-si470x-i2c but never had chances to play with it. May be it's also better to ask Tobias and Joonyoung Shim. I don't think that i'm ready to maintain si470x driver but i'll be happy to be up to date with any changes and discussions about all usb radio drivers.

I have usb gemtek radio 21 (dsbr100) and i'm ready to maintain it. I can prepare patch.
Also i think that only fixes and corrections will be present for this driver in future.

Quoted 5 lines
Quoted 2 lines

I don't have usb radio for radio-keene.c driver but i probably will take a look how to buy it here..

I wrote the driver for that one, so I'll be the maintainer for this driver (I'm preparing MAINTAINERS patches as I write this).

Oh, i never mean to take maintainership on keene radio (you're the author) :) I just thought how to buy it.

Quoted 4 lines
Quoted 3 lines

And i'm also ready to maintain driver radio-ma901.c. I posted patches for this device about two weeks ago. Driver is rather small (first working version) but i hope to add more features there in future.

Quoted 8 lines

I missed this post, I'll try to do a quick review today.

Did you run v4l2-compliance on this driver? If not, then you should do that (v4l2-compliance -r /dev/radioX) and fix any errors it produces.

Regards,

Hans

No, i didn't know about this tool.
Thanks. I'll run v4l2-compliance on /dev/radio and check.

Signature · 2 lines
Best regards,
Alexey
#31 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Quoted 245 lines · On Mon 26 November 2012 00:18:30 Alexey Klimov wrote:

Hi Hans,

Quoted 238 lines · Hans Verkuil

Hi Alexey,

Quoted 226 lines · On Mon November 12 2012 19:41:57 Alexey Klimov wrote:

Hi Mauro, Hans, all,

Quoted 211 lines · Mauro Carvalho Chehab

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:

     Supported:   Someone is actually paid to look after this.
     Maintained:  Someone actually looks after it.
     Odd Fixes:   It has a maintainer but they don't have time to do

much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

      $ git show --pretty=email|./scripts/get_maintainer.pl
      Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
      Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
      Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
      Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
      Hans de Goede <[email protected]> (commit_signer:1/7=14%)
      [email protected] (open list:MEDIA INPUT INFRA...)
      [email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

    DIR=$(dirname $0)

    $DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
    grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
    grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 11 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 6 lines
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

I'm very sorry for long silence but i'm ready to take maintainership for radio-mr800. By the way, i think that only fixes will be present for this driver in the future.

Quoted 8 lines

Is it possible for driver to have two maintainers or for example one person marked as maintainer and another one marked as "odd fixes" ? I mean i'm interested to be in c/c regarding all email, news, interesting patches for radio-mr800, dsbr100 and usb radio part of si470x but i don't know how to mark it that i want to help with these drivers. I have only dsbr100, mr800 and kworld fm700 (based on si470x) usb radios and i'm ready to test any patches and help as much as i can.

Quoted 3 lines

I saw that you made a MAINTAINERS entry for radio-mr800, but not for dsbr100 or si470x. Do you want to be the maintainer for those two, or shall I add myself as the 'Odd Fixes' entry? I have hardware for both.

Quoted 8 lines

About si470x. It consists of two parts (usb and i2c interfaces) if i remember correctly.
I have kworld fm700 usb radio only. I saw platforms with radio-si470x-i2c but never had chances to play with it. May be it's also better to ask Tobias and Joonyoung Shim. I don't think that i'm ready to maintain si470x driver but i'll be happy to be up to date with any changes and discussions about all usb radio drivers.

I'm happy to maintain the usb part and do odd-fixes for the i2c part for this driver...

Quoted 4 lines

I have usb gemtek radio 21 (dsbr100) and i'm ready to maintain it. I can prepare patch.
Also i think that only fixes and corrections will be present for this driver in future.

...and if you can maintain this driver, then we've split it up nicely.

Is that OK with you?

Quoted 9 lines
Quoted 6 lines
Quoted 3 lines

I don't have usb radio for radio-keene.c driver but i probably will take a look how to buy it here..

I wrote the driver for that one, so I'll be the maintainer for this driver (I'm preparing MAINTAINERS patches as I write this).

Oh, i never mean to take maintainership on keene radio (you're the author) :) I just thought how to buy it.

It's hard to get outside the UK. I had to use a forwarding service to get mine from amazon.co.uk.

Regards,

Hans

#32 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Hi Hans,

Quoted 258 lines · Hans Verkuil
Quoted 245 lines · On Mon 26 November 2012 00:18:30 Alexey Klimov wrote:

Hi Hans,

Quoted 238 lines · Hans Verkuil

Hi Alexey,

Quoted 226 lines · On Mon November 12 2012 19:41:57 Alexey Klimov wrote:

Hi Mauro, Hans, all,

Quoted 211 lines · Mauro Carvalho Chehab

Em Fri, 2 Nov 2012 14:47:49 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 157 lines · On Fri November 2 2012 14:13:10 Mauro Carvalho Chehab wrote:
Quoted 142 lines

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 113 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

Quoted 26 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 25 lines

Hi Hans,

Em Mon, 22 Oct 2012 10:35:56 +0200
Hans Verkuil <[email protected]> escreveu:

Quoted 5 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 11 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed)
- Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:

     Supported:   Someone is actually paid to look after this.
     Maintained:  Someone actually looks after it.
     Odd Fixes:   It has a maintainer but they don't have time to do

much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 44 lines
Quoted 43 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

      $ git show --pretty=email|./scripts/get_maintainer.pl
      Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT INFRA...,commit_signer:7/7=100%)
      Hans Verkuil <[email protected]> (commit_signer:4/7=57%)
      Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
      Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
      Hans de Goede <[email protected]> (commit_signer:1/7=14%)
      [email protected] (open list:MEDIA INPUT INFRA...)
      [email protected] (open list)

According with this driver's copyrights:

* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved. *
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

    DIR=$(dirname $0)

    $DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
    grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
    grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

Quoted 6 lines

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

Regards,
Mauro

These two are 'Supported' by me:

i2c/ad9389b.ko = i2c/ad9389b.c
i2c/adv7604.ko = i2c/adv7604.c

These are 'Maintained' by me:

Quoted 7 lines
i2c/cx2341x.ko                 = i2c/cx2341x.c
parport/bw-qcam.ko             = parport/bw-qcam.c
parport/c-qcam.ko              = parport/c-qcam.c
radio/dsbr100.ko               = radio/dsbr100.c
radio/radio-cadet.ko           = radio/radio-cadet.c
radio/radio-isa.ko             = radio/radio-isa.c
radio/radio-keene.ko           = radio/radio-keene.c

OK. Could you please send patches for those? I think that the better is to write one patch by each MAINTAINERS entry (except, of course, if there are consecutive entries), as I suspect that MAINTAINERS is likely one of top-rated merge-conflicts file.

Quoted 21 lines

There are more radio drivers that can have that status, but I would need to check that when I'm back in Oslo.

I can do 'Odd fixes' for the following:

i2c/cx25840/cx25840.ko         = i2c/cx25840/cx25840-core.c i2c/cx25840/cx25840-audio.c i2c/cx25840/cx25840-firmware.c i2c/cx25840/cx25840-vbi.c i2c/cx25840/cx25840-ir.c
i2c/m52790.ko                  = i2c/m52790.c
i2c/msp3400.ko                 = i2c/msp3400-driver.c i2c/msp3400-kthreads.c
i2c/saa6588.ko                 = i2c/saa6588.c
i2c/saa7110.ko                 = i2c/saa7110.c
i2c/saa7115.ko                 = i2c/saa7115.c
i2c/saa7127.ko                 = i2c/saa7127.c
i2c/saa717x.ko                 = i2c/saa717x.c
i2c/tda7432.ko                 = i2c/tda7432.c
i2c/tda9840.ko                 = i2c/tda9840.c
i2c/tea6415c.ko                = i2c/tea6415c.c
i2c/tea6420.ko                 = i2c/tea6420.c
i2c/tvaudio.ko                 = i2c/tvaudio.c
i2c/tveeprom.ko                = i2c/tveeprom.c
Quoted 1 line

i2c/tvp5150.ko = i2c/tvp5150.c

While I don't mind if you want to do odd fixes for this device, I think I can maintain this one, as the "default" device I use for random tests has this chipset (HVR-950), and I wrote this driver.

Quoted 11 lines
i2c/wm8739.ko                  = i2c/wm8739.c
i2c/wm8775.ko                  = i2c/wm8775.c
parport/pms.ko                 = parport/pms.c
platform/vivi.ko               = platform/vivi.c
radio/radio-aimslab.ko         = radio/radio-aimslab.c
radio/radio-gemtek.ko          = radio/radio-gemtek.c
radio/radio-maxiradio.ko       = radio/radio-maxiradio.c
radio/radio-miropcm20.ko       = radio/radio-miropcm20.c
radio/radio-mr800.ko           = radio/radio-mr800.c
radio/radio-rtrack2.ko         = radio/radio-rtrack2.c
radio/radio-si4713.ko          = radio/radio-si4713.c
Quoted 6 lines
Quoted 4 lines
usb/cx231xx/cx231xx-alsa.ko    = usb/cx231xx/cx231xx-audio.c
usb/cx231xx/cx231xx-dvb.ko     = usb/cx231xx/cx231xx-dvb.c
usb/cx231xx/cx231xx-input.ko   = usb/cx231xx/cx231xx-input.c
usb/cx231xx/cx231xx.ko         = +

I think we should check if the driver author is not interested on taking maintainership for this one, before putting it on Odd fixes status.

I'm very sorry for long silence but i'm ready to take maintainership for radio-mr800. By the way, i think that only fixes will be present for this driver in the future.

Quoted 8 lines

Is it possible for driver to have two maintainers or for example one person marked as maintainer and another one marked as "odd fixes" ? I mean i'm interested to be in c/c regarding all email, news, interesting patches for radio-mr800, dsbr100 and usb radio part of si470x but i don't know how to mark it that i want to help with these drivers. I have only dsbr100, mr800 and kworld fm700 (based on si470x) usb radios and i'm ready to test any patches and help as much as i can.

Quoted 3 lines

I saw that you made a MAINTAINERS entry for radio-mr800, but not for dsbr100 or si470x. Do you want to be the maintainer for those two, or shall I add myself as the 'Odd Fixes' entry? I have hardware for both.

Quoted 8 lines

About si470x. It consists of two parts (usb and i2c interfaces) if i remember correctly.
I have kworld fm700 usb radio only. I saw platforms with radio-si470x-i2c but never had chances to play with it. May be it's also better to ask Tobias and Joonyoung Shim. I don't think that i'm ready to maintain si470x driver but i'll be happy to be up to date with any changes and discussions about all usb radio drivers.

I'm happy to maintain the usb part and do odd-fixes for the i2c part for this driver...

Quoted 8 lines
Quoted 4 lines

I have usb gemtek radio 21 (dsbr100) and i'm ready to maintain it. I can prepare patch.
Also i think that only fixes and corrections will be present for this driver in future.

...and if you can maintain this driver, then we've split it up nicely.

Is that OK with you?

Yes, of course, it's ok for me.

Quoted 9 lines
Quoted 8 lines
Quoted 5 lines
Quoted 2 lines

I don't have usb radio for radio-keene.c driver but i probably will take a look how to buy it here..

I wrote the driver for that one, so I'll be the maintainer for this driver (I'm preparing MAINTAINERS patches as I write this).

Oh, i never mean to take maintainership on keene radio (you're the author) :) I just thought how to buy it.

Quoted 6 lines

It's hard to get outside the UK. I had to use a forwarding service to get mine from amazon.co.uk.

Regards,

Hans

Ok, i'll take a look. Thanks.

Signature · 2 lines
Best regards,
Alexey
#33 lore raw

PATCH 1/1 firedtv: add MAINTAINERS entry

In reply to Mauro Carvalho Chehab

There is currently discussion to add MAINTAINERS records for media drivers that don't have one yet, possibly with 'orphan' or 'odd fixes' status. Here is a proper entry for the firedtv driver (for 1394 attached DVB STBs and 1394 attached DVB cards from Digital Everywhere).

The L: linux-media and T: linux-media.git lines in this entry are redundant to what scripts/get_maintainer.pl would show automatically but I added them for folks who read MAINTAINERS directly. The "(firedtv)" string is for those folks as well if they look for driver name rather than file path.

The F: drivers/media/firewire/ pattern and the "FireWire media drivers" title are currently synonymous with firedtv. If more drivers get added there, this can be revisited.

I don't have documentation or DVB-S2 devices to test, but I have DVB-C and DVB-T devices for testing.

---
 MAINTAINERS |    8 ++++++++
 1 file changed, 8 insertions(+)
MAINTAINERS +8 -0
@@ -3041,6 +3041,14 @@ T:	git git://git.alsa-project.org/alsa-k
 S:	Maintained
 F:	sound/firewire/
 
+FIREWIRE MEDIA DRIVERS (firedtv)
+M:	Stefan Richter <[email protected]>
+L:	[email protected]
+L:	[email protected]
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media.git
+S:	Maintained
+F:	drivers/media/firewire/
+
 FIREWIRE SBP-2 TARGET
 M:	Chris Boot <[email protected]>
 L:	[email protected]
Quoted 6 lines · On Nov 02 Mauro Carvalho Chehab wrote:

Em Thu, 1 Nov 2012 14:12:44 -0200
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 3 lines

Em Thu, 1 Nov 2012 16:44:50 +0100
Hans Verkuil <[email protected]> escreveu:

(thread [media-workshop] Tentative Agenda for the November workshop)

Quoted 3 lines
Quoted 3 lines
Quoted 3 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

[...]

Quoted 50 lines
Quoted 50 lines
Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:

S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain
to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 17 lines
Quoted 17 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied (changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl

[...]

Quoted 31 lines
Quoted 9 lines
Quoted 9 lines
Quoted 8 lines

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 6 lines
Quoted 2 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)

	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module >/tmp/all_drivers
	grep drivers/media/ MAINTAINERS | perl -ne 's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained
	grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

[...]

Signature · 3 lines
Stefan Richter
-=====-===-- =-== ---==
http://arcgraph.de/sr/
#34 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

In reply to Mauro Carvalho Chehab

Hi Mauro,

Quoted 139 lines · On Friday 02 November 2012 11:13:10 Mauro Carvalho Chehab wrote:

Em Thu, 1 Nov 2012 14:12:44 -0200 Mauro Carvalho Chehab escreveu:

Quoted 111 lines

Em Thu, 1 Nov 2012 16:44:50 +0100 Hans Verkuil escreveu:

Quoted 25 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 24 lines

Em Mon, 22 Oct 2012 10:35:56 +0200 Hans Verkuil escreveu:

Quoted 7 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012.
If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

Thank you for taking care of it.

Quoted 12 lines

- Explain current merging process (Mauro)
- Open floor for discussions on how to improve it (Mauro)
- Write down minimum requirements for new V4L2 (and DVB?) drivers, both for staging and mainline acceptance: which frameworks to use, v4l2-compliance, etc. (Hans Verkuil)
- V4L2 ambiguities (Hans Verkuil)
- TSMux device (a mux rather than a demux): Alain Volmat
- dmabuf status, esp. with regards to being able to test (Mauro/Samsung)
- Device tree support (Guennadi, not known yet whether this topic is needed) - Creating/selecting contexts for hardware that supports this (Samsung, only if time is available)

Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 5 lines
Quoted 5 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

Quoted 8 lines
Quoted 3 lines

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:
S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

(btw, I just realized that I should be changing the EDAC drivers I maintain to Supported; the media drivers I maintain should be kept as Maintained).

I suspect that the "maintainer-light" category for those radio and similar old stuff is likely "Odd Fixes".

Quoted 45 lines
Quoted 44 lines

There are some issues by not having a MAINTAINERS entry:
- patches may not flow into the driver maintainer;
- patches will likely be applied without tests/reviews or may stay for a long time queued;
- ./scripts/get_maintainer.pl at --no-git-fallback won't return any maintainer[1].

[1] Letting get_maintainer.pl is very time/CPU consuming. Letting it would delay a lot the patch review process, if applied for every patch, with unreliable and doubtful results. I don't do it, due to the large volume of patches, and because the 'other' results aren't typically the driver maintainer.

An example of this is the results for a patch I just applied

(changeset 2866aed103b915ca8ba0ff76d5790caea4e62ced):

	$ git show --pretty=email|./scripts/get_maintainer.pl
	Mauro Carvalho Chehab <[email protected]> (maintainer:MEDIA INPUT
	INFRA...,commit_signer:7/7=100%) Hans Verkuil
	<[email protected]> (commit_signer:4/7=57%)
	Anatolij Gustschin <[email protected]> (commit_signer:1/7=14%)
	Wei Yongjun <[email protected]> (commit_signer:1/7=14%)
	Hans de Goede <[email protected]> (commit_signer:1/7=14%)
	[email protected] (open list:MEDIA INPUT INFRA...)
	[email protected] (open list)

According with this driver's copyrights:
* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* Freescale VIU video driver
*
* Authors: Hongjun Chen <[email protected]>
* Porting to 2.6.35 by DENX Software Engineering,
* Anatolij Gustschin <[email protected]>

The driver author (Hongjun Chen <[email protected]>) was not even shown there, and the co-author got only 15% hit, while I got 100% and Hans got 57%.

This happens not only to this driver. In a matter of fact, on most cases where no MAINTAINERS entry exist, the driver's author gets a very small hit chance, as, on several of those drivers, the author doesn't post anything else but the initial patch series.

Quoted 7 lines
Quoted 3 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)

	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module
Quoted 1 line

/tmp/all_drivers grep drivers/media/ MAINTAINERS | perl -ne

's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained grep -v -f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/ -e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Quoted 7 lines

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

These are 'Maintained' by me:

i2c/aptina-pll.ko              = i2c/aptina-pll.c
i2c/mt9p031.ko                 = i2c/mt9p031.c
i2c/mt9t001.ko                 = i2c/mt9t001.c
i2c/mt9v032.ko                 = i2c/mt9v032.c

I can maintain the following driver if needed:

i2c/mt9m032.ko = i2c/mt9m032.c

I could also take over maintenance the following driver, but I don't have access to a hardware platform that uses it:

i2c/mt9v011.ko = i2c/mt9v011.c

These are, as far as I know, co-maintained by Sakari and me :-)

i2c/adp1653.ko = i2c/adp1653.c
i2c/as3645a.ko = i2c/as3645a.c

Signature · 3 lines
Regards,

Laurent Pinchart
#35 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Hi Martin,

Quoted 11 lines · On Thursday 08 November 2012 15:18:38 Laurent Pinchart wrote:
Quoted 10 lines · On Friday 02 November 2012 11:13:10 Mauro Carvalho Chehab wrote:

Em Thu, 1 Nov 2012 14:12:44 -0200 Mauro Carvalho Chehab escreveu:

Quoted 9 lines

Em Thu, 1 Nov 2012 16:44:50 +0100 Hans Verkuil escreveu:

Quoted 8 lines · On Thu October 25 2012 19:27:01 Mauro Carvalho Chehab wrote:
Quoted 7 lines

Em Mon, 22 Oct 2012 10:35:56 +0200 Hans Verkuil escreveu:

Quoted 6 lines

Hi all,

This is the tentative agenda for the media workshop on November 8, 2012. If you have additional things that you want to discuss, or something is wrong or incomplete in this list, please let me know so I can update the list.

[snip]

Quoted 33 lines
Quoted 33 lines
Quoted 33 lines
Quoted 4 lines
Quoted 2 lines

I have an extra theme for discussions there: what should we do with the drivers that don't have any MAINTAINERS entry.

I've added this topic to the list.

Thanks!

Quoted 9 lines
Quoted 8 lines

It probably makes sense to mark them as "Orphan" (or, at least, have some criteria to mark them as such). Perhaps before doing that, we could try to see if are there any developer at the community with time and patience to handle them.

This could of course be handled as part of the discussions about how to improve the merge process, but I suspect that this could generate enough discussions to be handled as a separate theme.

Quoted 5 lines

Do we have a 'Maintainer-Light' category? I have a lot of hardware that I can test. So while I wouldn't like to be marked as 'The Maintainer of driver X' (since I simply don't have the time for that), I wouldn't mind being marked as someone who can at least test patches if needed.

There are several "maintainance" status there:
S: Status, one of the following:
Supported: Someone is actually paid to look after this.
Maintained: Someone actually looks after it.
Odd Fixes: It has a maintainer but they don't have time to do
much other than throw the odd patch in. See below..
Orphan: No current maintainer [but maybe you could take the
role as you write your new code].
Obsolete: Old code. Something tagged obsolete generally means
it has been replaced by a better system and you should be using that.

[snip]

Quoted 39 lines
Quoted 29 lines
Quoted 7 lines
Quoted 3 lines

We probably need to have an entry for all the media drivers, even if it just points to the linux-media mailinglist as being the 'collective default maintainer'.

Yes, I think that all media drivers should be there. I prefer to tag the ones that nobody sends us a MAINTAINERS entry with "Orphan", as this tag indicates that help is wanted.

I wrote a small shell script to see what's missing, using the

analyze_build.pl script at media-build devel_scripts dir:

	DIR=$(dirname $0)
	
	$DIR/analyze_build.pl --path drivers/media/ --show_files_per_module
Quoted 1 line

/tmp/all_drivers grep drivers/media/ MAINTAINERS | perl -ne

's/F:\s+//;s,drivers/media/,,; print $_ if (!/^\n/)' >maintained grep -v

(quoted diff) +0 -2
-f maintained /tmp/all_drivers |grep -v -e keymaps -e v4l2-core/
-e dvb-core/ -e media.ko -e rc-core.ko -e ^#| sort >without_maint

I excluded the core files from the list, as they don't need any specific entry. RC keymaps is also a special case, as I don't think any maintainer is needed for them.

Basically, analyze_build.pl says that there are 613 drivers under drivers/media. The above script shows 348 drivers without an explicit maintainer. So, only 43% of the drivers have a formal maintainer.

Quoted 7 lines

Yet, on the list below, I think several of them can be easily tagged as "Odd fixes", like cx88 and saa7134.

I think I'll send today a few RFC MAINTAINERS patches for some stuff below that I can myself be added as "Odd fixes". Yet, I would very much prefer if someone with more time than me could be taking over the "Odd fixes" patches I'll propose.

These are 'Maintained' by me:

Quoted 8 lines
i2c/aptina-pll.ko              = i2c/aptina-pll.c
i2c/mt9p031.ko                 = i2c/mt9p031.c
i2c/mt9t001.ko                 = i2c/mt9t001.c
i2c/mt9v032.ko                 = i2c/mt9v032.c

I can maintain the following driver if needed:

i2c/mt9m032.ko = i2c/mt9m032.c

Do you plan to send a MAINTAINERS patch for this driver (and thus maintain the driver :-)), or should I maintain it ?

Quoted 9 lines

I could also take over maintenance the following driver, but I don't have access to a hardware platform that uses it:

i2c/mt9v011.ko = i2c/mt9v011.c

These are, as far as I know, co-maintained by Sakari and me :-)

i2c/adp1653.ko = i2c/adp1653.c
i2c/as3645a.ko = i2c/as3645a.c

Signature · 3 lines
Regards,

Laurent Pinchart
#36 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Quoted 3 lines · Laurent Pinchart

Hi Martin,

On Thursday 08 November 2012 15:18:38 Laurent Pinchart wrote:

[ snip ]

Quoted 8 lines
Quoted 8 lines

These are 'Maintained' by me:

i2c/aptina-pll.ko              = i2c/aptina-pll.c
i2c/mt9p031.ko                 = i2c/mt9p031.c
i2c/mt9t001.ko                 = i2c/mt9t001.c
i2c/mt9v032.ko                 = i2c/mt9v032.c
Quoted 6 lines
Quoted 3 lines

I can maintain the following driver if needed:

i2c/mt9m032.ko = i2c/mt9m032.c

Do you plan to send a MAINTAINERS patch for this driver (and thus maintain the driver :-)), or should I maintain it ?

I sadly neigher have time nor hardware to maintain this driver at the moment so i would be more than happy if you can maintain it.

Thanks,
- Martin Hostettler

Quoted 16 lines
Quoted 10 lines

I could also take over maintenance the following driver, but I don't have access to a hardware platform that uses it:

i2c/mt9v011.ko = i2c/mt9v011.c

These are, as far as I know, co-maintained by Sakari and me :-)

i2c/adp1653.ko = i2c/adp1653.c
i2c/as3645a.ko = i2c/as3645a.c

Signature · 3 lines
Regards,

Laurent Pinchart
#37 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Hi Martin,

Quoted 15 lines · On Monday 10 December 2012 23:01:31 [email protected] wrote:
Quoted 3 lines · Laurent Pinchart

Hi Martin,

On Thursday 08 November 2012 15:18:38 Laurent Pinchart wrote:

[ snip ]

Quoted 9 lines
Quoted 9 lines

These are 'Maintained' by me:

i2c/aptina-pll.ko              = i2c/aptina-pll.c
i2c/mt9p031.ko                 = i2c/mt9p031.c
i2c/mt9t001.ko                 = i2c/mt9t001.c
i2c/mt9v032.ko                 = i2c/mt9v032.c

I can maintain the following driver if needed:

Quoted 7 lines
Quoted 4 lines
Quoted 1 line

i2c/mt9m032.ko = i2c/mt9m032.c

Do you plan to send a MAINTAINERS patch for this driver (and thus maintain the driver :-)), or should I maintain it ?

I sadly neigher have time nor hardware to maintain this driver at the moment so i would be more than happy if you can maintain it.

OK, I will do that.

Quoted 10 lines
Quoted 10 lines
Quoted 10 lines

I could also take over maintenance the following driver, but I don't have
access to a hardware platform that uses it:

i2c/mt9v011.ko = i2c/mt9v011.c

These are, as far as I know, co-maintained by Sakari and me :-)

i2c/adp1653.ko = i2c/adp1653.c
i2c/as3645a.ko = i2c/as3645a.c

Signature · 3 lines
Regards,

Laurent Pinchart
#38 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

In reply to Mauro Carvalho Chehab

Hi Mauro,

On Fri, Nov 02, 2012 at 11:13:10AM -0200, Mauro Carvalho Chehab wrote:
...
These are "Maintained" by me (with Laurent):

Quoted 2 lines

i2c/adp1653.ko = i2c/adp1653.c
i2c/as3645a.ko = i2c/as3645a.c

"Maintained" by me:

Quoted 2 lines

i2c/smiapp-pll.ko = i2c/smiapp-pll.c
i2c/smiapp/smiapp.ko = i2c/smiapp/smiapp-core.c i2c/smiapp/smiapp-regs.c i2c/smiapp/smiapp-quirk.c i2c/smiapp/smiapp-limits.c

"Odd fixes":

Quoted 2 lines

i2c/tcm825x.ko = i2c/tcm825x.c
platform/omap2cam.ko = platform/omap24xxcam.c platform/omap24xxcam-dma.c

Regards,

Signature · 2 lines
Sakari Ailus
e-mail: [email protected]	XMPP: [email protected]
#39 lore raw

Re: drivers without explicit MAINTAINERS entry - was: Re: [media-workshop] Tentative Agenda for the November workshop

Hi Sakari,

Em Sat, 10 Nov 2012 22:55:22 +0200
Sakari Ailus <[email protected]> escreveu:

Quoted 14 lines

Hi Mauro,

On Fri, Nov 02, 2012 at 11:13:10AM -0200, Mauro Carvalho Chehab wrote:
...
These are "Maintained" by me (with Laurent):

Quoted 2 lines

i2c/adp1653.ko = i2c/adp1653.c
i2c/as3645a.ko = i2c/as3645a.c

"Maintained" by me:

Quoted 2 lines

i2c/smiapp-pll.ko = i2c/smiapp-pll.c
i2c/smiapp/smiapp.ko = i2c/smiapp/smiapp-core.c i2c/smiapp/smiapp-regs.c i2c/smiapp/smiapp-quirk.c i2c/smiapp/smiapp-limits.c

Quoted 7 lines

"Odd fixes":

Quoted 2 lines

i2c/tcm825x.ko = i2c/tcm825x.c
platform/omap2cam.ko = platform/omap24xxcam.c platform/omap24xxcam-dma.c

Regards,

Care to send us a patch with the above? It is likely better to have one entry per driver, to reduce the risk of merge conflicts upstream.

Signature · 2 lines
Regards,
Mauro
#40 lore raw

PATCH 1/1 MAINTAINERS: Update maintainer for smiapp and adp1653 drivers

And the smiapp-pll which is in a way part of the smiapp driver.

---
 MAINTAINERS |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
MAINTAINERS +16 -0
index f4b3aa8..9c2a6bb 100644
@@ -336,6 +336,13 @@ W:	http://wireless.kernel.org/
 S:	Orphan
 F:	drivers/net/wireless/adm8211.*
 
+ADP1653 FLASH CONTROLLER DRIVER
+M:	Sakari Ailus <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	drivers/media/i2c/adp1653.c
+F:	include/media/adp1653.h
+
 ADP5520 BACKLIGHT DRIVER WITH IO EXPANDER (ADP5520/ADP5501)
 M:	Michael Hennerich <[email protected]>
 L:	[email protected]
@@ -6685,6 +6692,15 @@ M:	Nicolas Pitre <[email protected]>
 S:	Odd Fixes
 F:	drivers/net/ethernet/smsc/smc91x.*
 
+SMIA AND SMIA++ IMAGE SENSOR DRIVER
+M:	Sakari Ailus <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	drivers/media/i2c/smiapp
+F:	include/media/smiapp.h
+F:	drivers/media/i2c/smiapp-pll.c
+F:	drivers/media/i2c/smiapp-pll.h
+
 SMM665 HARDWARE MONITOR DRIVER
 M:	Guenter Roeck <[email protected]>
 L:	[email protected]
Signature · 1 line
1.7.2.5