extern int udevdb_delete_udevice(const char *name);
extern int udevdb_add_device(const char *device, const struct sysfs_class_device *class_dev, const char *name, char type, int major, int minor, int mode);
extern struct udevice *udevdb_get_udevice(const char *name);
extern int udevdb_delete_udevice(const char *name);
extern int udevdb_add_device(const char *device, const struct sysfs_class_device *class_dev, const char *name, char type, int major, int minor, int mode);
extern struct udevice *udevdb_get_udevice(const char *name);