Index: uspace/lib/usb/include/usb/usb.h
===================================================================
--- uspace/lib/usb/include/usb/usb.h	(revision ac18b084c27350ad1ab8149b71552cb3aa81493e)
+++ uspace/lib/usb/include/usb/usb.h	(revision 867b3757d6898c102509e02a34857fa95c832191)
@@ -114,4 +114,9 @@
 typedef int16_t usb_address_t;
 
+typedef struct {
+	usb_address_t address;
+	unsigned port;
+} usb_tt_address_t;
+
 /** Default USB address. */
 #define USB_ADDRESS_DEFAULT 0