Index: uspace/lib/drv/generic/remote_hw_res.c
===================================================================
--- uspace/lib/drv/generic/remote_hw_res.c	(revision 2fd26bbb5577f592b70747a25fba122b01bb9559)
+++ uspace/lib/drv/generic/remote_hw_res.c	(revision b08e98baa9f9a43decb28ff503b56eed801651fd)
@@ -67,10 +67,12 @@
 	hw_res_ops_t *hw_res_ops = (hw_res_ops_t *) ops;
 	
-	if (hw_res_ops->enable_interrupt == NULL)
+	if (hw_res_ops->enable_interrupt == NULL) {
 		async_answer_0(callid, ENOTSUP);
-	else if (hw_res_ops->enable_interrupt(fun))
-		async_answer_0(callid, EOK);
-	else
-		async_answer_0(callid, EREFUSED);
+		return;
+	}
+	
+	const int irq = DEV_IPC_GET_ARG1(*call);
+	const int ret = hw_res_ops->enable_interrupt(fun, irq);
+	async_answer_0(callid, ret);
 }