KLSI_HDR_LEN
count = kfifo_out_locked(&port->write_fifo, buf + KLSI_HDR_LEN,
size - KLSI_HDR_LEN, &port->lock);
return count + KLSI_HDR_LEN;
if (urb->actual_length <= KLSI_HDR_LEN) {
if (len > urb->actual_length - KLSI_HDR_LEN) {
len = urb->actual_length - KLSI_HDR_LEN;
tty_insert_flip_string(&port->port, data + KLSI_HDR_LEN, len);