Index: uspace/lib/usbhost/include/usb/host/hcd.h
===================================================================
--- uspace/lib/usbhost/include/usb/host/hcd.h	(revision 77ad86ca9ec1edac5e39ab6e237ea58c13b85efb)
+++ uspace/lib/usbhost/include/usb/host/hcd.h	(revision 971f50e7b8ec7e54ff3b15b786bb8f91611ed5fd)
@@ -98,8 +98,7 @@
  * @return pointer cast to hcd_t*.
  */
-static inline hcd_t * fun_to_hcd(const ddf_fun_t *fun)
+static inline hcd_t *fun_to_hcd(ddf_fun_t *fun)
 {
-	assert(fun);
-	return fun->driver_data;
+	return ddf_fun_data_get(fun);
 }