_IOWINT
#define EVIOCRMFF _IOWINT(EVDEV_IOC_MAGIC, 0x81) /* Erase a force effect */
#define EVIOCGRAB _IOWINT(EVDEV_IOC_MAGIC, 0x90) /* Grab/Release device */
#define EVIOCREVOKE _IOWINT(EVDEV_IOC_MAGIC, 0x91) /* Revoke device access */