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support for AF9035 (not tuner)

DISCUSSION Hervé Cauwelier 2 participants 6 messages Oct 18, 2010 – Oct 19, 2010 Media (V4L/DVB)

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Hi,

I got a USB video grabber, which is a dumb analog video converter.

Installing it under Windows with the given drivers reveals it as "AF9035 Analog Capture Filter", when capturing from VLC for example.

I couldn't find any direct support for Linux but only when coupled with a DVB tuner or something:
http://strobe.anti.nu/af9035_fc0011.html

I could successfully build the given driver from Terratec on a 2.6.35 kernel but loading it doesn't bring any support. Yet it contains source files for AF903x but without license headers.

When plugged in:

Oct 18 09:47:56 xiong kernel: usb 2-1: new high speed USB device using ehci_hcd and address 6
Oct 18 09:47:56 xiong load-modules.sh: 'usb:v1D19p6105d0200dc00dsc00dp00icFFisc00ip00' is not a valid module or alias name

And "lsusb -v": http://bpaste.net/show/10197/

So I request help for bringing support for this chipset. Anything from obscure experimental repository to compile, to free beers and even financial contribution.

Regards,

Hervé

#1 lore raw
Quoted 4 lines · Hervé Cauwelier

I got a USB video grabber, which is a dumb analog video converter.

Installing it under Windows with the given drivers reveals it as "AF9035 Analog Capture Filter", when capturing from VLC for example.

There is no open source driver making use of the I2S and ITU656 interfaces of this chip. Both Antti's and Afatech/ITE's driver only do DVB-T.

There must be one more chip in that grabber doing the actual analog->digital conversion. Do you know which one? Or can you provide a link to the Windows driver?

Daniel

#2 lore raw
Quoted 10 lines · Daniel Glöckner
Quoted 4 lines · Hervé Cauwelier

I got a USB video grabber, which is a dumb analog video converter.

Installing it under Windows with the given drivers reveals it as "AF9035 Analog Capture Filter", when capturing from VLC for example.

There is no open source driver making use of the I2S and ITU656 interfaces of this chip. Both Antti's and Afatech/ITE's driver only do DVB-T.

Quoted 5 lines

There must be one more chip in that grabber doing the actual analog->digital conversion. Do you know which one? Or can you provide a link to the Windows driver?

Daniel

I've uploaded the compressed installer at http://dl.free.fr/p2BTq9BNi
It's 1.6 MB.

Or maybe you just needed some INF or CAT file installed on my computer?

Hervé

#3 lore raw
Quoted 1 line · Hervé Cauwelier

I've uploaded the compressed installer at http://dl.free.fr/p2BTq9BNi

The driver mentiones two video decoders:
- TI TVP5150
- Trident AVF4900B/AVF4910B

If it is the first one, sniffed USB traffic might be enough to write a driver as there already is one for the decoder.

The latter one is undocumented. Two months ago I was told by Trident that the device is not supported as it has been phased out from production.

Daniel

#4 lore raw
Quoted 7 lines · Daniel Glöckner
Quoted 1 line · Hervé Cauwelier

I've uploaded the compressed installer at http://dl.free.fr/p2BTq9BNi

The driver mentiones two video decoders:
- TI TVP5150
- Trident AVF4900B/AVF4910B

Quoted 8 lines

If it is the first one, sniffed USB traffic might be enough to write a driver as there already is one for the decoder.

The latter one is undocumented. Two months ago I was told by Trident that the device is not supported as it has been phased out from production.

Daniel

I managed to open it properly. I see two chips: the AF9035B and the other one is labelled "AVF 4910BA1".

So is it dead? I couldn't find any datasheet, even to sell. I could only find a commercial 2-page PDF presentation. I doubt you can grab any technical information from it.

Do I continue searching for a datasheet?

Hervé