int _rdr_rc632_mifare_auth(struct rfid_reader_handle *rh, u_int8_t cmd,
u_int32_t serno, u_int8_t block);
int _rdr_rc632_getopt(struct rfid_reader_handle *rh, int optname,
int _rdr_rc632_mifare_auth(struct rfid_reader_handle *rh, u_int8_t cmd,
u_int32_t serno, u_int8_t block);
int _rdr_rc632_getopt(struct rfid_reader_handle *rh, int optname,