#define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
#define LL_IOC_LLOOP_INFO _IOWR('f', 171, long)
#define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
#define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
#define LL_IOC_LLOOP_INFO _IOWR('f', 171, long)
#define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)