+extern const struct device_type simple_device_type;
+extern const struct device_type bridge_device_type;
+
+void device_lock(void);
+void device_unlock(void);
+
+struct device *device_create(const char *name, const struct device_type *type,
+ struct blob_attr *config);
+void device_init_settings(struct device *dev, struct blob_attr **tb);
+void device_init_pending(void);
+
+enum dev_change_type
+device_set_config(struct device *dev, const struct device_type *type,
+ struct blob_attr *attr);