uea_send_modem_cmd
ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);