SOUND_MIXER_LINE  825 include/uapi/linux/soundcard.h #define SOUND_MASK_LINE		(1 << SOUND_MIXER_LINE)
SOUND_MIXER_LINE  857 include/uapi/linux/soundcard.h #define SOUND_MIXER_READ_LINE		MIXER_READ(SOUND_MIXER_LINE)
SOUND_MIXER_LINE  887 include/uapi/linux/soundcard.h #define SOUND_MIXER_WRITE_LINE		MIXER_WRITE(SOUND_MIXER_LINE)