kern/152622: [pcm] uaudio recording problem

[Thierry Thomas]

The following reply was made to PR kern/152622; it has been noted by GNATS.

From: Thierry Thomas <thierry at FreeBSD.org>
To: Hans Petter Selasky <hselasky at c2i.net>
Cc: freebsd-multimedia at freebsd.org, FreeBSD-gnats-submit at freebsd.org
Subject: Re: kern/152622: [pcm] uaudio recording problem
Date: Mon, 11 Apr 2011 18:59:51 +0200

 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.