kern/152622: [pcm] uaudio recording problem

[Thierry Thomas]

On mon 11 apr 11 at 18:38:16 +0200, Hans Petter Selasky <hselasky at c2i.net>
 wrote:
> > Still no success:
> > 
> > # sysctl hw.usb.uaudio.default_rate=16000
> > hw.usb.uaudio.default_rate: 0 -> 16000
> > # dd if=/dev/dsp1.0 of=/dev/dsp0.0 bs=64
> > dd: /dev/dsp1.0: Invalid argument
> > 0+0 records in
> > 0+0 records out
> > 0 bytes transferred in 5.000237 secs (0 bytes/sec)
> > # sysctl hw.usb.uaudio.default_rate=32000
> 
> Did you reply the device after setting the sysctl. It should show a different 
> rate.
> 
> > hw.usb.uaudio.default_rate: 16000 -> 32000
> > # dd if=/dev/dsp1.0 of=/dev/dsp0.0 bs=64
> > dd: /dev/dsp1.0: Invalid argument
> > 0+0 records in
> > 0+0 records out
> > 0 bytes transferred in 5.002866 secs (0 bytes/sec)

I had'nt done anything special, but trying again and plug-in / plug-out
after changing hw.usb.uaudio.default_rate shows that it is detected:

Apr 11 18:49:43 graf root: Unknown USB device: vendor 0x046d product 0x0825 bus uhub4
Apr 11 18:49:43 graf last message repeated 4 times
Apr 11 18:49:49 graf kernel: ugen4.3: <vendor 0x046d> at usbus4
Apr 11 18:49:49 graf kernel: uaudio0: <vendor 0x046d product 0x0825, class 239/2, rev 2.00/0.10, addr 3> on usbus4
Apr 11 18:49:49 graf kernel: uaudio0: No playback!
Apr 11 18:49:49 graf kernel: uaudio0: Record: 16000 Hz, 1 ch, 16-bit S-LE PCM format
Apr 11 18:49:49 graf kernel: uaudio0: No midi sequencer
Apr 11 18:49:49 graf kernel: pcm1: <USB audio> on uaudio0
Apr 11 18:51:53 graf kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead
Apr 11 18:52:19 graf kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead
Apr 11 18:52:56 graf kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead

Apr 11 18:53:00 graf root: Unknown USB device: vendor 0x046d product 0x0825 bus uhub4
Apr 11 18:53:00 graf kernel: ugen4.3: <vendor 0x046d> at usbus4 (disconnected)
Apr 11 18:53:00 graf kernel: uaudio0: at uhub4, port 8, addr 3 (disconnected)
Apr 11 18:53:00 graf kernel: pcm1: detached
Apr 11 18:53:00 graf root: Unknown USB device: vendor 0x046d product 0x0825 bus uhub4
Apr 11 18:53:00 graf last message repeated 3 times
Apr 11 18:53:04 graf kernel: ugen4.3: <vendor 0x046d> at usbus4
Apr 11 18:53:04 graf kernel: uaudio0: <vendor 0x046d product 0x0825, class 239/2, rev 2.00/0.10, addr 3> on usbus4
Apr 11 18:53:04 graf kernel: uaudio0: No playback!
Apr 11 18:53:04 graf kernel: uaudio0: Record: 32000 Hz, 1 ch, 16-bit S-LE PCM format
Apr 11 18:53:04 graf kernel: uaudio0: No midi sequencer
Apr 11 18:53:04 graf kernel: pcm1: <USB audio> on uaudio0
Apr 11 18:53:23 graf kernel: pcm1: chn_read(): pcm1:virtual:dsp1.vr0: record interrupt timeout, channel dead

Best regards,
-- 
Th. Thomas.