SNDRV_PCM_IOCTL_DROP  593 include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_DROP		_IO('A', 0x43)
SNDRV_PCM_IOCTL_DROP  593 tools/include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_DROP		_IO('A', 0x43)