SOUND_MIXER_LOUD  848 include/uapi/linux/soundcard.h #define SOUND_MASK_LOUD		(1 << SOUND_MIXER_LOUD)
SOUND_MIXER_LOUD  872 include/uapi/linux/soundcard.h #define SOUND_MIXER_READ_LOUD		MIXER_READ(SOUND_MIXER_LOUD)
SOUND_MIXER_LOUD  902 include/uapi/linux/soundcard.h #define SOUND_MIXER_WRITE_LOUD		MIXER_WRITE(SOUND_MIXER_LOUD)