SOUND_MIXER_READ_VOLUME 722 fs/compat_ioctl.c COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME) SOUND_MIXER_READ_VOLUME 1408 sound/oss/dmasound/dmasound_atari.c case SOUND_MIXER_READ_VOLUME: SOUND_MIXER_READ_VOLUME 1441 sound/oss/dmasound/dmasound_atari.c case SOUND_MIXER_READ_VOLUME: SOUND_MIXER_READ_VOLUME 629 sound/oss/dmasound/dmasound_paula.c case SOUND_MIXER_READ_VOLUME: