_LINUX_IOC         62 compat/linux/linux_ioctl.h 	_LINUX_IOC(_LINUX_IOC_NONE,(type),(nr),0)
_LINUX_IOC         64 compat/linux/linux_ioctl.h 	_LINUX_IOC(_LINUX_IOC_READ,(type),(nr),sizeof(size))
_LINUX_IOC         66 compat/linux/linux_ioctl.h 	_LINUX_IOC(_LINUX_IOC_WRITE,(type),(nr),sizeof(size))
_LINUX_IOC         68 compat/linux/linux_ioctl.h 	_LINUX_IOC(_LINUX_IOC_READ|_LINUX_IOC_WRITE,(type),(nr),sizeof(size))