Symbol: SOUND_MASK_SPEAKER
sound/oss/dmasound/dmasound_atari.c
1405
(MACH_IS_TT ? SOUND_MASK_SPEAKER : 0));
sound/oss/dmasound/dmasound_atari.c
1438
return IOCTL_OUT(arg, SOUND_MASK_VOLUME | SOUND_MASK_MIC | SOUND_MASK_SPEAKER);