usb_hcd_find_raw_port_number
port1 = usb_hcd_find_raw_port_number(bus_to_hcd(udev->bus),
raw_port = usb_hcd_find_raw_port_number(usb_hcd,
extern int usb_hcd_find_raw_port_number(struct usb_hcd *hcd, int port1);