int mw_send_frame(mwdevice_t *mwdevice, unsigned char msg_type, unsigned char options, unsigned char *data, unsigned char len);
-int mw_set_rtc(mwdevice_t *mwdevice, unsigned char clk1224, unsigned char date_fmt);
+int mw_set_rtc(mwdevice_t *mwdevice);
int mw_nval_operation(mwdevice_t *mwdevice, unsigned char operation, unsigned short identifier, unsigned char size, void *mdata);