Snd-pcm-oss
From the ALSA wiki
[edit] The snd-pcm-oss module
snd-pcm-oss is a kernel module from ALSA's OssEmulation which emulates the old OSS audio devices /dev/dsp and /dev/audio.
The other OSS devices are emulated by the modules snd-seq-oss and snd-mixer-oss.
