+void device_handler_status(struct device_handler *handler,
+ struct status *status);
+void device_handler_status_info(struct device_handler *handler,
+ const char *fmt, ...);
+void device_handler_status_err(struct device_handler *handler,
+ const char *fmt, ...);
+void device_handler_status_dev_info(struct device_handler *handler,
+ struct discover_device *dev, const char *fmt, ...);
+void device_handler_status_dev_err(struct device_handler *handler,
+ struct discover_device *dev, const char *fmt, ...);
+