Again: Problems with Dongle, Headset or btsco
Hi
I still try to use my Anycom 240 USB Dongle with the Plantronics 2500 Headset. As Marcel stated in a previous Thread, this dongle looks like to have an RSSI inquiry bug.
to make it short: shall I buy another dongle? And which one is known to work without problems?
Here is the List what I did:
compile 2.6.10 Kernel (without patch-2.6.10-mh1.gz). In previous trys I used the bluez libs and tools (compiled them outside the kernel).
compile the latest btsco csv
btsco <addr> connects to the headset and i can change the volume via the headset-button.
So i guess the rfcomm Communication is ok
But aplay -D plughw:Headset soundfile doesnt work. either arecord ...
(btw: Should aplay ... be executed while btsco is connected to the HS?)
weird thing: when using the hstest prog in bluez-utils i am able to record _something_ but it's more or less static (although the noises appear to be the spoken text - with wrong frequency/speed).
Any Hints?
friendly regards
ben
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maybe this is redundant information, but the correct use of btsco is this:
1. start btsco <addr>
when it is ready connection to the headset (no more output), press the headset "connect" button - some output like "open hwdep, connected sco channel" should show up
keep btsco running! do not quit it!
2. use any audio app including aplay to play/record audio while the headset is connected
3. disconnect the headset by pressing the "connect" button of the headset again. Audio stops working until you "connect" again with the button.
******
If you did everything like this, it should work like described. If it does not, you might need another dongle :)
I'm using a epox bt-dg03 and it works fine for me, that is, for my logitech mx900 bt mouse and my sony ericsson hbh-35 headset. I don't know if this is the "best" dongle.
I was also able to use the headset with the "dongle" that came with the MX900, but I never made much tests there (the headset is only used with the epox dongle because I keep my IM programs running on that PC)
best regards,
~ Lars
Ben Pezzei wrote:
| Hi | | I still try to use my Anycom 240 USB Dongle with the Plantronics 2500 | Headset. As Marcel stated in a previous Thread, this dongle looks | like to have an RSSI inquiry bug. | | to make it short: shall I buy another dongle? And which one is known | to work without problems? | | Here is the List what I did: | | compile 2.6.10 Kernel (without patch-2.6.10-mh1.gz). In | previous trys I used the bluez libs and tools (compiled | them outside the kernel). | | compile the latest btsco csv | | btsco <addr> connects to the headset and i can change | the volume via the headset-button. | | So i guess the rfcomm Communication is ok | | But aplay -D plughw:Headset soundfile doesnt work. | either arecord ... | (btw: Should aplay ... be executed while btsco is connected | to the HS?) | | weird thing: when using the hstest prog in bluez-utils i am | able to record _something_ but it's more or less static | (although the noises appear to be the spoken text - with | wrong frequency/speed). | | Any Hints? | | friendly regards | ben | | | | | | ------------------------------------------------------- | This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting | Tool for open source databases. Create drag-&-drop reports. Save time | by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. | Download a FREE copy at http://www.intelliview.com/go/osdn_nl | _______________________________________________ | Bluez-devel mailing list | [email protected] | https://lists.sourceforge.net/lists/listinfo/bluez-devel |
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Hi Lars,
Tnx for your reply
Lars Grunewaldt schrieb:
...
Quoted 3 lines
3. disconnect the headset by pressing the "connect" button of the headset again. Audio stops working until you "connect" again with the button.
like i said, the rfcomm connection is fine: (output from btsco <addr>):
Device is 1:0
Voice setting: 0x0060
RFCOMM channel 1 connected
recieved AT+CKPD=200
opened hwdep
connected SCO channel
Setting sco fd
Done setting sco fd
recieved AT+VGS=04
...
after reconnecting via headset:
disconnected SCO channel
recieved AT+CKPD=200
opened hwdep
Can't connect SCO audio channel
: Connection timed out
I always have to replug the dongle and restart btsco.
The question remains: Do I need the patch-2.6.10-mh1.gz patch?
I guess the Problem has to do with the SCO or ALSA Stuff
Quoted 2 lines
If you did everything like this, it should work like described. If it does not, you might need another dongle :)
well, looks like the anycom 240 is fubar
greetings
ben
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Ben Pezzei wrote:
| Hi Lars, | | Tnx for your reply | | Lars Grunewaldt schrieb: | | ... | |> 3. disconnect the headset by pressing the "connect" button of the |> headset again. Audio stops working until you "connect" again with the |> button. | | | like i said, the rfcomm connection is fine: (output from btsco <addr>):
btsco handles rfcomm and sco connections, so...
| Device is 1:0 | Voice setting: 0x0060 | RFCOMM channel 1 connected | recieved AT+CKPD=200 | opened hwdep | connected SCO channel | Setting sco fd | Done setting sco fd
this looks good.
| after reconnecting via headset: | disconnected SCO channel | recieved AT+CKPD=200 | opened hwdep | Can't connect SCO audio channel | : Connection timed out
this does not. It should re-connect without problems, but I can't tell whether this would be solved with mh1-patches or what might causing that you can't reconnect to the headset.
You can try the patches out, I use them and it works well.
| I guess the Problem has to do with the SCO or ALSA Stuff
sco, not alsa I think. The alsa stuff is only needed to transmit the sco data to the alsa functions and vice versa, so it's unlikly that the impossibility of reconnecting on a new sco channel is the problem. More likely the sco channel is not terminated correctly in the first place.
best regards,
~ Lars
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Quoted 3 lines
You can try the patches out, I use them and it works well.
Hi,
allow me to say: I have the exact same problem, can't get my dongle to work. Anyway, what I meant to say was that the patches change absolutely nothing: still have to replug the dongle to reconnect, and still get no audio (although volume buttons work). If you need any information to cross-check and try to isolate the problem, just ask.
-mirko_3
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Hi Lars,
Quoted 6 lines · Lars Grunewaldt
| I guess the Problem has to do with the SCO or ALSA Stuff
sco, not alsa I think. The alsa stuff is only needed to transmit the sco data to the alsa functions and vice versa, so it's unlikly that the impossibility of reconnecting on a new sco channel is the problem. More likely the sco channel is not terminated correctly in the first place.
ok. Is it possible that the SCO Part of this dongle is somehow broken? Obviously the RFCOMM Part is working fine.
Since the hwdep module is part of the alsa-libs it looks like the dongle can't be re-initialized (as a soundcard) after a disconnect.
Question: when connected via btsco and trying to play some sound with:
aplay -D plughw:Headset soundfile
Does soundfile need to have the correct samplerate,frequency,etc as the Headset?
I am also able to set speaker and capture volume of the Headset with alsamixer -c 1
unfortunately
arecord -D plughw:Headset z1.out
Recording WAVE 'z1.out' : Unsigned 8 bit, Rate 8000 Hz, Mono
only creates a 44 Byte big file z1.out with the header but no content
Last Question: Which are other methods to send/receive data from/to the headset beside aplay / arecord?
eg cat /dev/snd/pcmC1D0c > z1.out ? :)
greetings
b
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Quoted 19 lines · On Sat, 22 Jan 2005 14:59:39 +0100 Ben Pezzei <[email protected]> wrote:
ok. Is it possible that the SCO Part of this dongle is somehow broken? Obviously the RFCOMM Part is working fine.
Since the hwdep module is part of the alsa-libs it looks like the dongle can't be re-initialized (as a soundcard) after a disconnect.
Question: when connected via btsco and trying to play some sound with:
aplay -D plughw:Headset soundfile
Does soundfile need to have the correct samplerate,frequency,etc as the Headset?
I am also able to set speaker and capture volume of the Headset with alsamixer -c 1unfortunately
arecord -D plughw:Headset z1.out
Recording WAVE 'z1.out' : Unsigned 8 bit, Rate 8000 Hz, Mono
Quoted 7 lines
only creates a 44 Byte big file z1.out with the header but no content
Last Question: Which are other methods to send/receive data from/to the headset beside aplay / arecord?
eg cat
/dev/snd/pcmC1D0c> z1.out ? :)
Can't help you with the rest, but in xmms you can select the headset...
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|> |> |> Last Question: Which are other methods to send/receive data |> from/to the headset beside aplay / arecord? |> |> eg cat /dev/snd/pcmC1D0c > z1.out ? :) |
you have to use snd_pcm_oss for that.
from kernel doc:
To enable OSS digital audio (PCM) emulation (/dev/dsp*), say Y here and read <file:Documentation/sound/alsa/OSS-Emulation.txt>.
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Hi,
Quoted 2 lines · Ben Pezzei
Since the hwdep module is part of the alsa-libs it looks like the dongle can't be re-initialized (as a soundcard) after a disconnect.
How do you know the dongle can't be re-initialized ? What does it say when you launch again btsco ?
Quoted 4 lines
Last Question: Which are other methods to send/receive data from/to the headset beside aplay / arecord?
eg cat
/dev/snd/pcmC1D0c> z1.out ? :)
I was able to use gnomemeeting, mplayer and other programs that use alsa or oss.
For mplayer I used -ao alsa:device=hw=Headset -srate 8000 -channels 1
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Hi ,
Quoted 2 lines · Paul Ionescu
How do you know the dongle can't be re-initialized ? What does it say when you launch again btsco ?
After disconnecting via Headset (press Button) and connecting again the btsco looks like:
disconnected SCO channel
recieved AT+CKPD=200
opened hwdep
Can't connect SCO audio channel
: Connection timed out
Same when exiting ctrl+c btsco and start it again
Quoted 3 lines
I was able to use gnomemeeting, mplayer and other programs that use alsa or oss.
For mplayer I used -ao alsa:device=hw=Headset -srate 8000 -channels 1
no X installed ;(
greetings
ben
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Quoted 7 lines · Ben Pezzei
Hi ,
Quoted 2 lines · Paul Ionescu
How do you know the dongle can't be re-initialized ? What does it say when you launch again btsco ?
Quoted 7 lines
After disconnecting via Headset (press Button) and connecting again the btsco looks like:
disconnected SCO channel
recieved AT+CKPD=200
opened hwdep
Can't connect SCO audio channel
: Connection timed out
you can try to disconnect btsco (with ^C)
verify with
hcitool con
that you don't have any connections still active after you disconnect btsco, (if they are, delete them with hictool dc MAC_OF_HEADSET) and then try again to connect with btsco.
I had this problem and I solved this way.
Quoted 7 lines
Same when exiting ctrl+c btsco and start it again
Quoted 3 lines
I was able to use gnomemeeting, mplayer and other programs that use alsa or oss.
For mplayer I used -ao alsa:device=hw=Headset -srate 8000 -channels 1no X installed ;(
You don't need X for mplayer
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Hi Ben,
Quoted 2 lines
ok. Is it possible that the SCO Part of this dongle is somehow broken? Obviously the RFCOMM Part is working fine.
I've had problems with a Anycom 220 dongle (also Silicon Wave chip) too. RFCOMM seemed to work but no sound. hcidump showed a flow of sco packets with handle 0. Can't get it working till now so I decided to use another one.
Quoted 5 lines
Question: when connected via btsco and trying to play some sound with:
aplay -D plughw:Headset soundfile
Does soundfile need to have the correct samplerate,frequency,etc as the Headset?
IMHO, no.
Quoted 6 lines
unfortunately
arecord -D plughw:Headset z1.out
Recording WAVE 'z1.out' : Unsigned 8 bit, Rate 8000 Hz, Monoonly creates a 44 Byte big file z1.out with the header but no content
For older versions of arecord this is the usual behaviour. Update alsa-tools or try the commandline switch '-d' (man arecord).
Best regards,
Sebastian
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Hi Sebastian,
Quoted 8 lines · Sebastian Roth
Quoted 6 lines
unfortunately
arecord -D plughw:Headset z1.out
Recording WAVE 'z1.out' : Unsigned 8 bit, Rate 8000 Hz, Monoonly creates a 44 Byte big file z1.out with the header but no content
For older versions of arecord this is the usual behaviour. Update alsa-tools or try the commandline switch '-d' (man arecord).
Well, I'll give it a last try: I'll patch the kernel with the mh1 patch from bluez and the latest alsa libs. (currently installed arecord version is 1.0.7 - latest is 1.0.8), although i doubt this will finally work :)
One very last Question (BT specific):
I upgraded the Dongle on a win xp box to BT 1.2. After reading the docs, 1.2 has some changes in it regarding Audio which imho affects the SCO part, right? Does it make sense to downgrade the dongle to 1.1 (if possible)?
finally, tnx all for your replies & tips
greetings
ben
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Ben Pezzei wrote:
| Hi Sebastian, | | Sebastian Roth schrieb: | |>> unfortunately |>> arecord -D plughw:Headset z1.out |>> Recording WAVE 'z1.out' : Unsigned 8 bit, Rate 8000 Hz, Mono
uhm, this is wrong. If you are using the "actual" btsco package from CVS
- - and you should be - it must record as signed 16 bit if I'm not mistaken (possibly unsigned 16B, but in no case 8 bit)
best regards,
~ Lars
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Hi
Quoted 4 lines · Lars Grunewaldt
uhm, this is wrong. If you are using the "actual" btsco package from CVS
- - and you should be - it must record as signed 16 bit if I'm not mistaken (possibly unsigned 16B, but in no case 8 bit)
This worked neither
Anyways, I just want to let you know that I kicked the Anycom Dongle and bought an D-Link DBT 120 Rev 4, et voila: Everything is working fine.
Headset: Plantronics 2500
tnx again for your help and congrats @ Developers
greetings
ben
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Marcel,
as it seems that those dongles seem not to work with the currect sco implementation, what would you propose to debug this misfunction?
Maybe the hci_usb driver can be fixed or a workaround added for this chipsets (I think they are buggy, not our implementation, but if there's a simple workaround...)
best regards,
~ Lars
Ben Pezzei wrote:
| Hi | | Lars Grunewaldt schrieb: | |> |> uhm, this is wrong. If you are using the "actual" btsco package from CVS |> - - and you should be - it must record as signed 16 bit if I'm not |> mistaken (possibly unsigned 16B, but in no case 8 bit) | | | This worked neither | | Anyways, I just want to let you know that I kicked the Anycom | Dongle and bought an D-Link DBT 120 Rev 4, et voila: Everything | is working fine. | | Headset: Plantronics 2500 | | tnx again for your help and congrats @ Developers | | greetings | ben | | | | | ------------------------------------------------------- | This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting | Tool for open source databases. Create drag-&-drop reports. Save time | by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. | Download a FREE copy at http://www.intelliview.com/go/osdn_nl | _______________________________________________ | Bluez-devel mailing list | [email protected] | https://lists.sourceforge.net/lists/listinfo/bluez-devel |
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Marcel Holtmann
maintainerHi Lars,
Quoted 6 lines
as it seems that those dongles seem not to work with the currect sco implementation, what would you propose to debug this misfunction?
Maybe the
hci_usbdriver can be fixed or a workaround added for this chipsets (I think they are buggy, not our implementation, but if there's a simple workaround...)
the Silicon Wave chips are not the best ones. They have problems and it seems that they are not going to fix them. Mostly because they sell ROM chips are these ones can't be updated by a newer firmware. However if this is the problem with SCO packets and handle 0 then the hci_usb driver should simply drop these frames, because they are not valid SCO payload.
Regards
Marcel
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Quoted 9 lines · Marcel Holtmann
Hi Lars,
Quoted 6 lines
as it seems that those dongles seem not to work with the currect sco implementation, what would you propose to debug this misfunction?
Maybe the
hci_usbdriver can be fixed or a workaround added for this chipsets (I think they are buggy, not our implementation, but if there's a simple workaround...)
Quoted 6 lines
the Silicon Wave chips are not the best ones. They have problems and it seems that they are not going to fix them. Mostly because they sell ROM chips are these ones can't be updated by a newer firmware. However if this is the problem with SCO packets and handle 0 then the
hci_usbdriver should simply drop these frames, because they are not valid SCO payload.
I'm confused by this response. I have a USB-240 dongle too. Does this mean that a simple workaround is possible, or no?
Signature · 18 lines
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