mix_set
mix_set(sc->sm, dev, left, right);
mix_set(sc->sm, dev, left, right);
mix_set(sc->sm, dev, left, right);
err = mix_set(m, SOUND_MIXER_SYNTH, level & 0x7f,
err = mix_set(m, SOUND_MIXER_SYNTH, level & 0x7f,
mix_set(pdevinfo->mixer, dev, vol, vol);
int mix_set(struct snd_mixer *m, u_int dev, u_int left, u_int right);