SNDRV_TIMER_IOCTL_PVERSION 773 include/uapi/sound/asound.h #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int) SNDRV_TIMER_IOCTL_PVERSION 773 tools/include/uapi/sound/asound.h #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)