Re: /dev/audio

[Nick Bane <nick@cecomputing.co.uk>]

> Hi
>
> On at91sam9263ek .
>
> cat  audiotest.au >/dev/audio works well in angstrom rfs .  But not
> working (no sound) on debian armel rfs , using
> same kernel.
I had this on a balloon board. The ac97 codec (UCB1400) was defaulting to 
zero volume. It could be that angstrom sets the volume to non zero where 
emdebian leaves it as the driver default I believe. You can check that it 
is "playing" even at zero volume by noting that it takes an expected amount 
of time to finish catting.

Nick Bane
> I need to fix this.
>
> Plz help
>
> # uname -a
> Linux AT91SAM9 2.6.28 #1 Mon Sep 21 12:13:21 IST 2009 armv5tejl unknown
>
> # cat /proc/asound/cards
>  0 [AC97           ]: ac97c - Atmel AC97
>                      Atmel AC97 Controller at 0xfffa0000, irq 18
>
> #ls /dev/snd/ -l
> crw-rw-rw-    1 root     root     116,   0 Dec 31 17:00 controlC0
> crw-rw-rw-    1 root     root     116,  24 Dec 31 17:00 pcmC0D0c
> crw-rw-rw-    1 root     root     116,  16 Dec 31 17:00 pcmC0D0p
> crw-rw-rw-    1 root     root     116,   1 Dec 31 17:00 seq
> crw-rw-rw-    1 root     root     116,  33 Dec 31 17:00 timer
>
>
>  ls /dev/dsp  -l
> crw-rw----    1 root     root      14,   3 Dec 31 17:00 /dev/dsp
>
>  ls /dev/audio -l
> crw-rw----    1 root     root      14,   4 Dec 31 17:00 /dev/audio
>
> regards
>
> Nataraj
>
>
>
>
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