SND_VOL_C_VAL
c->volume[SND_VOL_C_VAL(vc)][vt] =
c->volume[SND_VOL_C_VAL(vc)][i] =
c->volume[SND_VOL_C_VAL(vc)][vt] =
c->muted[SND_VOL_C_VAL(vc)][vt] = mute;
c->muted[SND_VOL_C_VAL(vc)][i] = mute;
c->muted[SND_VOL_C_VAL(vc)][vt] = mute;
vol = c->volume[SND_VOL_C_VAL(info->volume_class)];
muted = c->muted[SND_VOL_C_VAL(info->volume_class)];