Index: uspace/lib/drv/include/usb_iface.h
===================================================================
--- uspace/lib/drv/include/usb_iface.h	(revision 19b3cc6e811d9121b454895875bdd47387821c1e)
+++ uspace/lib/drv/include/usb_iface.h	(revision 296fcce4d5fb9f9a742e7de86df6c87aa9202f74)
@@ -58,5 +58,5 @@
 
 int usb_register_endpoint(async_exch_t *, usb_endpoint_t, usb_transfer_type_t,
-    usb_direction_t, size_t, unsigned);
+    usb_direction_t, size_t, unsigned, unsigned);
 int usb_unregister_endpoint(async_exch_t *, usb_endpoint_t, usb_direction_t);
 int usb_read(async_exch_t *, usb_endpoint_t, uint64_t, void *, size_t, size_t *);
@@ -81,5 +81,5 @@
 
 	int (*register_endpoint)(ddf_fun_t *, usb_endpoint_t,
-	    usb_transfer_type_t, usb_direction_t, size_t, unsigned);
+	    usb_transfer_type_t, usb_direction_t, size_t, unsigned, unsigned);
 	int (*unregister_endpoint)(ddf_fun_t *, usb_endpoint_t,
 	    usb_direction_t);