Index: uspace/lib/c/include/ipc/dev_iface.h
===================================================================
--- uspace/lib/c/include/ipc/dev_iface.h	(revision 1db5669ba6b4304571c0fad33329fc19b51b9f26)
+++ uspace/lib/c/include/ipc/dev_iface.h	(revision 26bc0fd10fa2579b9b192f6dd165b50194fcedc4)
@@ -36,4 +36,5 @@
 typedef enum {
 	HW_RES_DEV_IFACE = 0,
+	PIO_WINDOW_DEV_IFACE,
 
 	/** Character device interface */