Index: uspace/lib/usbdev/include/usb/dev/device.h
===================================================================
--- uspace/lib/usbdev/include/usb/dev/device.h	(revision 09ab0a9afc9379f1604c0fd75cac2d9287ba022c)
+++ uspace/lib/usbdev/include/usb/dev/device.h	(revision f4a42661db08a6e215d28ae55d64213d298d7424)
@@ -91,5 +91,5 @@
 
 usb_address_t usb_device_get_address(const usb_device_t *);
-usb_speed_t usb_device_get_depth(const usb_device_t *);
+unsigned usb_device_get_depth(const usb_device_t *);
 usb_speed_t usb_device_get_speed(const usb_device_t *);
 int usb_device_get_iface_number(const usb_device_t *);