update_devnum    2972 drivers/usb/core/hub.c 			update_devnum(udev, 0);
update_devnum    4475 drivers/usb/core/hub.c 		update_devnum(udev, devnum);
update_devnum    4876 drivers/usb/core/hub.c 		update_devnum(udev, devnum);	/* for disconnect processing */