static struct usb_serial_driver option_3port_device = {
        .driver = {
                .owner =        THIS_MODULE,
-               .name =         "option",
+               .name =         "option3",
        },
        .description       = "GSM modem (3-port)",
        .id_table          = option_ids3,
        .chars_in_buffer   = option_chars_in_buffer,
        .throttle          = option_rx_throttle,
        .unthrottle        = option_rx_unthrottle,
+       .ioctl             = option_ioctl,
        .set_termios       = option_set_termios,
        .break_ctl         = option_break_ctl,
        .tiocmget          = option_tiocmget,
 static struct usb_serial_driver option_1port_device = {
        .driver = {
                .owner =        THIS_MODULE,
-               .name =         "option",
+               .name =         "option1",
        },
        .description       = "GSM modem (1-port)",
        .id_table          = option_ids1,
 
        dbg("%s", __FUNCTION__);
 
-
        for (i = 0; i < serial->num_ports; i++) {
                port = serial->port[i];
                portdata = usb_get_serial_port_data(port);