usb_wwan_port_probe
.port_probe = usb_wwan_port_probe,
.port_probe = usb_wwan_port_probe,
.port_probe = usb_wwan_port_probe,
extern int usb_wwan_port_probe(struct usb_serial_port *port);
EXPORT_SYMBOL_GPL(usb_wwan_port_probe);