MSND_MIXER_VOLUME
case MSND_MIXER_VOLUME: /* master volume */
DUMMY_VOLUME("Master Volume", 0, MSND_MIXER_VOLUME),
writew(dev->left_levels[MSND_MIXER_VOLUME],
writew(dev->right_levels[MSND_MIXER_VOLUME],
#define MSND_MASK_VOLUME (1 << MSND_MIXER_VOLUME)