Index: uspace/drv/bus/usb/usbflbk/main.c
===================================================================
--- uspace/drv/bus/usb/usbflbk/main.c	(revision 6785b538d1d589cbbed2c1fbe3c6dc068f7c0a05)
+++ uspace/drv/bus/usb/usbflbk/main.c	(revision 2dc5a9ff32f8362e05d413f795fc2fe2bcc1b774)
@@ -49,5 +49,5 @@
 {
 	usb_log_info("Pretending to control %s `%s'.\n",
-	    dev->interface_no < 0 ? "device" : "interface",
+	    usb_device_get_iface_number(dev) < 0 ? "device" : "interface",
 	    usb_device_get_name(dev));
 	return EOK;