Logitech HD Webcam Pro c910 && snd_uaudio does not work

[Matthias Apitz]

Hello,

The audio recording with the above cam is not working in r214444 and
snd_uaudio(4); on plug-in it says:

May 13 17:22:36 tinyCurrent kernel: ugen4.4: <vendor 0x046d> at usbus4
May 13 17:22:36 tinyCurrent kernel: uaudio0: <vendor 0x046d product 0x0821, class 239/2, rev 2.00/0.10, addr 4> on usbus4
May 13 17:22:36 tinyCurrent kernel: uaudio0: No playback!
May 13 17:22:36 tinyCurrent kernel: uaudio0: Record: 32000 Hz, 2 ch, 16-bit S-LE PCM format
May 13 17:22:36 tinyCurrent kernel: uaudio0: No midi sequencer
May 13 17:22:36 tinyCurrent kernel: pcm1: <USB audio> on uaudio0

but recording does not work:

$ dd if=/dev/dsp1 of=/tmp/snd
(after a second or so)
dd: /dev/dsp1: Invalid argument
0+0 records in
0+0 records out
0 bytes transferred in 5.000931 secs (0 bytes/sec)

in /var/log/messages it says in that situation:

May 13 17:23:12 tinyCurrent kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead

The same procedure for recording works fine in r226986 (where uaudio is
linked in the kernel) and 

$ cat /tmp/snd > /dev/dsp

plays fine the recorded audio. Any idea?

Thanks

	matthias
-- 
Matthias Apitz
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