SNDRV_PCM_IOCTL_PREPARE  590 include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_PREPARE		_IO('A', 0x40)
SNDRV_PCM_IOCTL_PREPARE  590 tools/include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_PREPARE		_IO('A', 0x40)