-extern struct sysfs_class_device *open_class_device_wait(const char *path);
-extern struct sysfs_device *open_devices_device_wait(const char *path);
+
+/* /sys/devices devices */
+extern struct sysfs_device *wait_devices_device_open(const char *path);
+extern int wait_for_devices_device(struct sysfs_device *devices_dev, const char **error);