Index: uspace/lib/usbhost/include/usb/host/ddf_helpers.h
===================================================================
--- uspace/lib/usbhost/include/usb/host/ddf_helpers.h	(revision cecba66ea48d60cfa59865e98aeda663808e42c7)
+++ uspace/lib/usbhost/include/usb/host/ddf_helpers.h	(revision c309b18982aa8ed31fd796bcd813732f5f312e6e)
@@ -76,5 +76,5 @@
     interrupt_handler_t handler,
     int (*gen_irq_code)(irq_code_t *, const hw_res_list_parsed_t *));
-void ddf_hcd_gen_irq_handler(ipc_callid_t iid, ipc_call_t *call, ddf_dev_t *dev);
+void ddf_hcd_gen_irq_handler(ipc_call_t *call, ddf_dev_t *dev);
 
 #endif
Index: uspace/lib/usbhost/src/ddf_helpers.c
===================================================================
--- uspace/lib/usbhost/src/ddf_helpers.c	(revision cecba66ea48d60cfa59865e98aeda663808e42c7)
+++ uspace/lib/usbhost/src/ddf_helpers.c	(revision c309b18982aa8ed31fd796bcd813732f5f312e6e)
@@ -788,8 +788,7 @@
  *
  * @param[in] dev DDF instance of the device to use.
- * @param[in] iid (Unused).
  * @param[in] call Pointer to the call from kernel.
  */
-void ddf_hcd_gen_irq_handler(ipc_callid_t iid, ipc_call_t *call, ddf_dev_t *dev)
+void ddf_hcd_gen_irq_handler(ipc_call_t *call, ddf_dev_t *dev)
 {
 	assert(dev);