Subject: Re: xon/xoff, dtr/dsr, cts/rts... help!
To: Peter Seebach <seebs@plethora.net>
From: Bill Studenmund <wrstuden@netbsd.org>
List: current-users
Date: 11/01/2002 11:12:24
On Fri, 1 Nov 2002, Peter Seebach wrote:

> So, I managed to get a terminal - an old WYSE 160.  It mostly works pretty
> well as a serial port gizmo, with a couple of problems.
>
> 1.  The terminal doesn't appear to support CTS/RTS handshaking; it supports
> DSR/DTR.  (Either that, or this is a DCE/DTE line naming convention thing,
> and it *should* work, but...)

Find out what pin your null modem maps the terminal's DTE to on the
computer. If it's DCE, then you can use mdmbuf. If it's DCE, well, hmmm..

> 2.  If I enable DSR/DTR handshaking, whenever the terminal tries to handshake,
> it ends up causing getty to respawn - I suspect NetBSD is seeing it as a
> break.

That actually would be good. That means that DTR is getting mapped to CD,
which is what mdmbuf wants. Mark the port local, and go for it.

Take care,

Bill