+struct discover_device *device_lookup_by_name(struct device_handler *handler,
+ const char *name);
+struct discover_device *device_lookup_by_path(struct device_handler *handler,
+ const char *path);
+struct discover_device *device_lookup_by_uuid(struct device_handler *handler,
+ const char *uuid);
+struct discover_device *device_lookup_by_label(struct device_handler *handler,
+ const char *label);
+struct discover_device *device_lookup_by_id(struct device_handler *handler,
+ const char *id);
+