+ public String toString() {
+ return String.format("valid %b version %d serial %d radio %d usb %04x:%04x %s",
+ valid, version, serial_number, radio_calibration,
+ usb_id == null ? 0 : usb_id.vid,
+ usb_id == null ? 0 : usb_id.pid,
+ usb_product == null ? "unknown" : usb_product);
+ }
+