SOUND_MIXER_INFO 784 fs/compat_ioctl.c COMPATIBLE_IOCTL(SOUND_MIXER_INFO) SOUND_MIXER_INFO 307 sound/core/oss/mixer_oss.c case SOUND_MIXER_INFO: SOUND_MIXER_INFO 354 sound/oss/dmasound/dmasound_core.c case SOUND_MIXER_INFO: