Index: uspace/lib/usbhost/src/hcd.c
===================================================================
--- uspace/lib/usbhost/src/hcd.c	(revision d1582b502edcb7bfeef771a2019538f265e7e27c)
+++ uspace/lib/usbhost/src/hcd.c	(revision c4ed9fac928b1683c3ccc7d35d520ec9962fe18a)
@@ -95,9 +95,11 @@
  * TODO: Make the bus mechanism less flexible in irq handling and remove the
  * lookup.
- */
-static void irq_handler(ipc_call_t *call, ddf_dev_t *dev)
-{
-	assert(dev);
-	hc_device_t *hcd = dev_to_hcd(dev);
+ *
+ * @param call Interrupt notification
+ * @param arg Argument (hc_device_t *)
+ */
+static void irq_handler(ipc_call_t *call, void *arg)
+{
+	hc_device_t *hcd = (hc_device_t *)arg;
 
 	const uint32_t status = ipc_get_arg1(call);
@@ -178,5 +180,5 @@
 	cap_irq_handle_t ihandle;
 	ret = register_interrupt_handler(hcd->ddf_dev, irq, irq_handler,
-	    &irq_code, &ihandle);
+	    (void *)hcd, &irq_code, &ihandle);
 	irq_code_clean(&irq_code);
 	if (ret != EOK) {