SOUND_MIXER_LINE3  835 include/uapi/linux/soundcard.h #define SOUND_MASK_LINE3	(1 << SOUND_MIXER_LINE3)
SOUND_MIXER_LINE3  867 include/uapi/linux/soundcard.h #define SOUND_MIXER_READ_LINE3		MIXER_READ(SOUND_MIXER_LINE3)
SOUND_MIXER_LINE3  897 include/uapi/linux/soundcard.h #define SOUND_MIXER_WRITE_LINE3		MIXER_WRITE(SOUND_MIXER_LINE3)