SOUND_MIXER_READ_VOLUME 2216 fs/compat_ioctl.c COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME) SOUND_MIXER_READ_VOLUME 1405 sound/oss/dmasound/dmasound_atari.c case SOUND_MIXER_READ_VOLUME: SOUND_MIXER_READ_VOLUME 1438 sound/oss/dmasound/dmasound_atari.c case SOUND_MIXER_READ_VOLUME: SOUND_MIXER_READ_VOLUME 627 sound/oss/dmasound/dmasound_paula.c case SOUND_MIXER_READ_VOLUME: