-extern char sysfs_path[SYSFS_PATH_MAX];
-extern char udev_root[PATH_MAX];
-extern char udev_db_path[PATH_MAX+NAME_MAX];
-extern char udev_config_filename[PATH_MAX+NAME_MAX];
-extern char udev_rules_filename[PATH_MAX+NAME_MAX];
-extern int udev_log;
-extern int udev_dev_d;
-extern int udev_hotplug_d;
+extern int udev_db_add_device(struct udevice *dev);
+extern int udev_db_delete_device(struct udevice *dev);
+extern int udev_db_get_device(struct udevice *udev, const char *devpath);
+extern int udev_db_lookup_name(const char *name, char *devpath, size_t len);
+extern int udev_db_get_all_entries(struct list_head *name_list);
+
+extern char sysfs_path[PATH_SIZE];
+extern char udev_root[PATH_SIZE];
+extern char udev_config_filename[PATH_SIZE];
+extern char udev_rules_filename[PATH_SIZE];
+extern int udev_log_priority;
+extern int udev_run;