Removing disconnected tty drivers

[Slawa Olhovchenkov]

On Thu, Oct 02, 2014 at 11:19:37AM -0400, John Baldwin wrote:

> On Wednesday, October 01, 2014 6:03:53 am Peter Jeremy wrote:
> > On 2014-Sep-29 11:53:53 -0400, John Baldwin <jhb at freebsd.org> wrote:
> > >The following drivers have never been converted to use the new tty layer 
> > >introduced in 8.0 and have been disconnected since then.  Several of them are 
> > >for older multiport serial cards, and in the case of sio(4), current kernels 
> > >use uart(4) instead.  Barring major objections, I plan to remove them from the 
> > >tree later this week.  If someone wishes to update them, they can always be 
> > >pulled back from svn history.
> > >
> > >dev/digi/digi.c:                tp = port->tp = ttyalloc();
> > 
> > See
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=152253
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=158086
> > unfortunately, I no longer have access to the hardware.  I'm happy to
> > update the patches to compile on -current but can't do more than that.
> 
> The second one was tested by another submitter, so if you want to spend the
> time, please update them and see if you can get someone to test them.  To be
> honest, I would be happy to drop ISA support and just keep PCI support if
> that is simpler.

Most difference between ISA/EISA and PCI at initialise time (and most
difference between models, not buses).
After initialization all code is common.