tbt_ioc
struct tbt_ioc *ioc = (struct tbt_ioc *)addr;
struct tbt_ioc *ioc = (struct tbt_ioc *)addr;
#define TBT_DISCOVER _IOWR('h', 1, struct tbt_ioc)
#define TBT_REQUEST _IOWR('h', 2, struct tbt_ioc)