182 static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)  in metrousb_open()  argument
287 static void metrousb_throttle(struct tty_struct *tty)  in metrousb_throttle()  argument
289 	struct usb_serial_port *port = tty->driver_data;  in metrousb_throttle()
293 	dev_dbg(tty->dev, "%s\n", __func__);  in metrousb_throttle()
301 static int metrousb_tiocmget(struct tty_struct *tty)  in metrousb_tiocmget()  argument
304 	struct usb_serial_port *port = tty->driver_data;  in metrousb_tiocmget()
308 	dev_dbg(tty->dev, "%s\n", __func__);  in metrousb_tiocmget()
317 static int metrousb_tiocmset(struct tty_struct *tty,  in metrousb_tiocmset()  argument
320 	struct usb_serial_port *port = tty->driver_data;  in metrousb_tiocmset()
326 	dev_dbg(tty->dev, "%s - set=%d, clear=%d\n", __func__, set, clear);  in metrousb_tiocmset()
346 static void metrousb_unthrottle(struct tty_struct *tty)  in metrousb_unthrottle()  argument
348 	struct usb_serial_port *port = tty->driver_data;  in metrousb_unthrottle()
353 	dev_dbg(tty->dev, "%s\n", __func__);  in metrousb_unthrottle()
364 		dev_err(tty->dev,  in metrousb_unthrottle()