SOUND_MIXER_READ_CAPS 2248 fs/compat_ioctl.c COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS) SOUND_MIXER_READ_CAPS 337 sound/core/oss/mixer_oss.c case SOUND_MIXER_READ_CAPS: SOUND_MIXER_READ_CAPS 1442 sound/oss/dmasound/dmasound_atari.c case SOUND_MIXER_READ_CAPS: