Index: uspace/lib/c/include/ipc/dev_iface.h
===================================================================
--- uspace/lib/c/include/ipc/dev_iface.h	(revision dffabf0f8ffadf4e01499b08d3f215e8de2ab6e3)
+++ uspace/lib/c/include/ipc/dev_iface.h	(revision 8f8a0cd66d82dc0f39e3ccc0ff2eb654c731d249)
@@ -39,4 +39,6 @@
 	CHAR_DEV_IFACE,
 
+	/** Interface provided by any USB device. */
+	USB_DEV_IFACE,
 	/** Interface provided by USB host controller. */
 	USBHC_DEV_IFACE,