Start all linking

def start_all_linking(self, link_type, group_id):
        """Start all linking"""
        self.logger.info("Start_all_linking for device %s type %s group %s",
                         self.device_id, link_type, group_id)
        self.hub.direct_command(self.device_id, '02', '64' + link_type + group_id)