kern/152622: [pcm] uaudio recording problem

Thierry Thomas thierry at FreeBSD.org
Sun Apr 10 10:53:38 UTC 2011


On sun 10 apr 11 at 12:18:20 +0200, Hans Petter Selasky <hselasky at c2i.net>
 wrote:

> It looks like your recording device does not have a volume control. If you:
> 
> dd if=/dev/dsp1.0 of=/dev/dsp0.0 bs=64
> 
> Do you then hear anything?

Nothing, but an error is displayed:

$ 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 5.000121 secs (0 bytes/sec)

$ ll /dev/dsp1.0 /dev/dsp0.0
crw-rw-rw-  1 root  wheel    0, 137  9 avr 17:01 /dev/dsp0.0
crw-rw-rw-  1 root  wheel    0, 160 10 avr 12:43 /dev/dsp1.0

Best regards,
-- 
Th. Thomas.


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