SNDRV_PCM_IOCTL_HW_FREE 582 include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12) SNDRV_PCM_IOCTL_HW_FREE 582 tools/include/uapi/sound/asound.h #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)