support for AF9035 (not tuner)

support for AF9035 (not tuner)

[Hervé Cauwelier]

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

Re: support for AF9035 (not tuner)

[Daniel Glöckner]

On Mon, Oct 18, 2010 at 09:52:26AM +0200, Hervé Cauwelier wrote:
> 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

Re: support for AF9035 (not tuner)

[Hervé Cauwelier]

On 10/18/10 20:57, Daniel Glöckner wrote:
> On Mon, Oct 18, 2010 at 09:52:26AM +0200, Hervé Cauwelier wrote:
>> 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

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

Re: support for AF9035 (not tuner)

[Daniel Glöckner]

On Mon, Oct 18, 2010 at 09:46:15PM +0200, Hervé Cauwelier wrote:
> 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

Re: support for AF9035 (not tuner)

[Hervé Cauwelier]

On 10/18/10 22:39, Daniel Glöckner wrote:
> On Mon, Oct 18, 2010 at 09:46:15PM +0200, Hervé Cauwelier wrote:
>> 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

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

Re: support for AF9035 (not tuner)

[Hervé Cauwelier]

On 10/19/10 09:13, Hervé Cauwelier wrote:
> Do I continue searching for a datasheet?

After a night searching, the only so-called datasheet I find is this 
commercial presentation:
http://www.datasheetarchive.com/pdf-datasheets/Datasheets-13/DSA-256708.html

I asked several resellers but those kind enough to reply me sent me the 
same file.

I doubt any of you can find enough technical data to understand how to 
address the chip.

Hervé