case mixer_channel_arg_reclev: val = SOUND_MIXER_RECLEV; break;
case mixer_channel_arg_igain: val = SOUND_MIXER_IGAIN; break;
case mixer_channel_arg_ogain: val = SOUND_MIXER_OGAIN; break;
case mixer_channel_arg_reclev: val = SOUND_MIXER_RECLEV; break;
case mixer_channel_arg_igain: val = SOUND_MIXER_IGAIN; break;
case mixer_channel_arg_ogain: val = SOUND_MIXER_OGAIN; break;