SOUND_MASK_VOLUME
if (!(sc->sc_mix_info & SOUND_MASK_VOLUME)) {
mix_setdevs(m, SOUND_MASK_VOLUME);
if ((mask & SOUND_MASK_VOLUME) == 0) {
mask |= SOUND_MASK_VOLUME;
flag = ~(SOUND_MASK_VOLUME | SOUND_MASK_PCM |
hdaa_dump_ctls(pdevinfo, "Master Volume", SOUND_MASK_VOLUME);
mask |= SOUND_MASK_VOLUME;
SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME |