Index: uspace/lib/c/include/ipc/dev_iface.h
===================================================================
--- uspace/lib/c/include/ipc/dev_iface.h	(revision cf02eaf20ca2a7fcb7eb5934b972b18b7bc1e6a3)
+++ uspace/lib/c/include/ipc/dev_iface.h	(revision 1f63d9d91fc74b5ce2b16a5b884bb6f690125255)
@@ -36,4 +36,5 @@
 typedef enum {
 	HW_RES_DEV_IFACE = 0,
+	PIO_WINDOW_DEV_IFACE,
 
 	/** Character device interface */