Index: uspace/drv/usbhub/usbhub.h
===================================================================
--- uspace/drv/usbhub/usbhub.h	(revision dff940f82499ff7b8a14b1ad5d5e45371da4a562)
+++ uspace/drv/usbhub/usbhub.h	(revision 039c66cb433d46ac99cc76ac2a10c383dea86661)
@@ -87,8 +87,10 @@
 
 /**
- * check changes on specified hub
+ * Check changes on specified hub
  * @param hub_info_param pointer to usb_hub_info_t structure
+ * @return error code if there is problem when initializing communication with
+ * hub, EOK otherwise
  */
-void usb_hub_check_hub_changes(usb_hub_info_t * hub_info_param);
+int usb_hub_check_hub_changes(usb_hub_info_t * hub_info_param);