struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data; 
struct usb_serial_port *port = tty->driver_data; 
static void serial_set_termios (struct tty_struct *tty, struct termios * old){	struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;	dbg("%s - port %d", __FUNCTION__, port->number);	if (!port->open_count) {		dbg("%s - port not open", __FUNCTION__);		return;	}	/* pass on to the driver specific version of this function if it is available */	if (port->serial->type->set_termios)		port->serial->type->set_termios(port, old);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/81671ddb7e24e9d1f84812dba8ed810935f77d40/usb-serial.c/buggy/drivers/usb/serial/usb-serial.c