Index: uspace/lib/usbdev/include/usb/dev/device.h
===================================================================
--- uspace/lib/usbdev/include/usb/dev/device.h	(revision fcbf101cd868ee6da4b68f5c9c4ac496316e4d0e)
+++ uspace/lib/usbdev/include/usb/dev/device.h	(revision 6ad7f2f28739c7b79ce1dfa3f64e58c82716b784)
@@ -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 *);