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Two SAA7134 TV Cards and sound over PCI bus

Am Freitag, den 10.02.2006, 08:36 +0100 schrieb Hoeschen, Markus:
> Hello,
> 
> hope someone can help me...
> 
> I'm using two SAA7134 based TV cards in one PC (Fedora Core 4) in
> conjunction with vlc (videolan-client) to stream two TV channels to my
> network.
> Before updating to kernel 2.6.15 everything worked without any problem.
> Now with the new kernel I can see the picture but I don't here any
> sound.
> This seams to be due the new kernel isn't supporting OSS any more.
> 
> In kernel 2.6.14 I've done modprobe (/etc/modprobe.conf):
> 
> alias char-major-81 saa7134
> options saa7134 video_nr=2,3 dsp_nr=2,3 vbi_nr=2,3 mixer_nr=2,3
> radio_nr=2,3 card=2,2 tuner=37,37 oss=1,1
> 
> This gives me /dev/dsp2 (TV card1) and /dev/dsp3 (TV card2) for the two
> audio sources. In this case sound is transferd through PCI bus not
> through any "external" cable (remember I've got 2 cards in the same PC).
> Now I can use vlc to capture audio and video from this sources and
> stream it through my network.
> 
> With the new kernel the OSS support seams to be discontinued (see
> kernel-log).
> 
> modprobe with the settings above always fails: dmseg says that the
> settings "dsp_nr", "mixer_nr" aren't supported any more.
> Modprobe without this settings will register the /dev/video0 and 1
> devices but no audio devices.
> Loading saa7134-alsa after saa7134 will register /dev/audio0 and
> /dev/dsp0 but not one dsp for every TV card.
> 
> I don't have any idea how to solve this....
> 
> Perhaps someone can give me a hint?

Hi Markus,

at least I can confirm your observations, since I booted yesterday a
recent FC 5 kernel for some tests. I did not try to solve the problem,
since they are currently not in shape for some of my specifical needs,
but with the kernel-devel package present it was always possible during
the last time to install cvs/mercurial.

Didn't check it on the latest yet, but it doesn't need much effort to
test it.

Cheers,
Hermann



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