int mw_status_change_event(mwdevice_t *mwdevice, unsigned char option, unsigned char *statrsp, int len);
void mw_set_status_change_event_cb(mwdevice_t *mwdevice, void (*mw_status_change_event_cb) (mwdevice_t *mwdevice, unsigned char *scrmode, unsigned char *status, void *user_data), void *user_data);
-int mw_low_battery_warning_message(mwdevice_t *mwdevice, unsigned char option, unsigned char *statrsp, int len);
+int mw_low_battery_warning_message(mwdevice_t *mwdevice);
void mw_set_low_battery_warning_message_cb(mwdevice_t *mwdevice, void (*mw_low_battery_warning_message_cb) (mwdevice_t *mwdevice, void *user_data), void *user_data);
-int mw_low_battery_bt_off_message(mwdevice_t *mwdevice, unsigned char option, unsigned char *statrsp, int len);
+int mw_low_battery_bt_off_message(mwdevice_t *mwdevice);
void mw_set_low_battery_bt_off_message_cb(mwdevice_t *mwdevice, void (*mw_low_battery_bt_off_message_cb) (mwdevice_t *mwdevice, void *user_data), void *user_data);
int mw_enable_button(mwdevice_t *mwdevice, unsigned char mode, unsigned char button_index, unsigned char press_type, unsigned char callback_type, unsigned char callback_option);