On Sun, May 26, 2013 at 06:04:24PM +0200, Johan Hovold wrote:
> On Sun, May 26, 2013 at 01:00:51PM +0200, Andrew Lunn wrote:
> > +/*
> > + * mxuport_write_room
> > + *
> > + * Return how much space is available in the buffer.
> > + */
> > +static int mxuport_write_room(struct tty_struct *tty)
> > +{
> > + struct usb_serial_port *port = tty->driver_data;
> > + unsigned long flags;
> > + int room;
> > +
> > + spin_lock_irqsave(&port->lock, flags);
> > + room = kfifo_avail(&port->write_fifo);
> > + spin_unlock_irqrestore(&port->lock, flags);
> > +
> > + dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);
> > + return room;
> > +}
....
> It seems it could be possible to reuse the generic write implementations
> of all functions but prepare_write_buffer above rather than the modified
> copies.
Hi Johan
If there a reason why usb_serial_generic_write_room() is not exported
as a GPL symbol. It looks like i should be able to use it once i sort
my 'fake' ports/endpoints out.
Thanks
Andrew
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