Index: uspace/lib/c/include/ipc/dev_iface.h
===================================================================
--- uspace/lib/c/include/ipc/dev_iface.h	(revision a2e488931eb7b70709c000f96f94534bf289a2f6)
+++ uspace/lib/c/include/ipc/dev_iface.h	(revision c9f703bcef572525b7b64f9d1b678615bfbf1f14)
@@ -52,4 +52,7 @@
 	USBHID_DEV_IFACE,
 
+	/** Interface provided by Real Time Clock devices */
+	CLOCK_DEV_IFACE,
+
 	DEV_IFACE_MAX
 } dev_inferface_idx_t;