if (port->write_urb->status != -EINPROGRESS) 
if (port->write_urb_busy) 
int usb_serial_generic_write_room (struct usb_serial_port *port){	struct usb_serial *serial = port->serial;	int room = 0;	dbg("%s - port %d", __FUNCTION__, port->number);		if (serial->num_bulk_out) {		if (port->write_urb->status != -EINPROGRESS)			room = port->bulk_out_size;	}	dbg("%s - returns %d", __FUNCTION__, room);	return (room);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/507ca9bc0476662f3463888d583864834eab1e11/generic.c/clean/drivers/usb/serial/generic.c