ac97

circuit ~ # lspci | grep audio
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)

circuit ~ # lsmod | grep snd
snd_hda_intel          14744  0
snd_hda_codec         146432  1 snd_hda_intel
snd_pcm_oss            35232  0
snd_mixer_oss          14080  1 snd_pcm_oss
snd_intel8x0           26780  0
snd_ac97_codec         84516  1 snd_intel8x0
snd_ac97_bus            2944  1 snd_ac97_codec
snd_pcm                58884  5 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_page_alloc          7944  3 snd_hda_intel,snd_intel8x0,snd_pcm
snd_timer              17156  1 snd_pcm
snd                    40036  8 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
soundcore               7648  1 snd
circuit ~ # chmod 666 /dev/dsp
circuit ~ # cat /dev/urandom > /dev/dsp
[ NO SOUND HEARD!!!]