[fso] no sound card

Rask Ingemann Lambertsen rask at sygehus.dk
Thu Mar 5 00:36:39 CET 2009


On Wed, Mar 04, 2009 at 05:23:34PM +0100, GNUtoo wrote:
> On Wed, 2009-03-04 at 16:17 +0000, Hans Zimmerman wrote:
> > 
> > Any pointers where to look for the problem/solution?
> on SHR i had a problem with sound too:
> no /dev/dsp was present

   That might not be a sign of trouble because /dev/dsp is the old Open
Sound System (OSS) interface. These days, ALSA is the norm and lives in the
/dev/snd directory. Three useful commands to try out (and example output
with just the built in sound card available):

$ lsmod | grep -E -e '^sound|^snd[_ ]'
snd_soc_neo1973_gta02_wm8753     8808  0 
snd_soc_s3c24xx_i2s     4568  1 snd_soc_neo1973_gta02_wm8753
snd_soc_s3c24xx         5192  1 snd_soc_neo1973_gta02_wm8753
snd_soc_wm8753         34228  2 snd_soc_neo1973_gta02_wm8753
snd_soc_core           46548  4 snd_soc_neo1973_gta02_wm8753,snd_soc_s3c24xx_i2s,snd_soc_s3c24xx,snd_soc_wm8753
snd_pcm_oss            45736  0 
snd_mixer_oss          15304  1 snd_pcm_oss
snd_pcm                75564  4 snd_soc_s3c24xx,snd_soc_core,snd_pcm_oss
snd_timer              21212  1 snd_pcm
snd_page_alloc          6824  1 snd_pcm
snd                    50852  8 snd_soc_neo1973_gta02_wm8753,snd_soc_wm8753,snd_soc_core,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore               6796  1 snd

(The modules snd_pcm_oss and snd_mixer_oss are for the kernel level OSS
emulation.)

$ ls -l /dev/snd
total 0
crw-rw---- 1 root audio 116,  0 Jan 30 00:04 controlC0
crw-rw---- 1 root audio 116, 24 Jan 30 00:04 pcmC0D0c
crw-rw---- 1 root audio 116, 16 Jan 30 00:04 pcmC0D0p
crw-rw---- 1 root audio 116, 25 Jan 30 00:04 pcmC0D1c
crw-rw---- 1 root audio 116, 17 Jan 30 00:04 pcmC0D1p
crw-rw---- 1 root audio 116, 33 Jan 30 00:04 timer

$ cat /proc/asound/cards
 0 [neo1973gta02   ]: WM8753 - neo1973-gta02
                      neo1973-gta02 (WM8753)

-- 
Rask Ingemann Lambertsen
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