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From: mikes@iuvax.cs.indiana.edu (Michael Squires)
Newsgroups: comp.unix.xenix.sco
Subject: Re: Do I really need to BREAK to change baud rates?
Summary: change modems
Keywords: speed changes
Message-ID: <1990Dec19.214713.26043@news.cs.indiana.edu>
Date: 19 Dec 90 21:47:13 GMT
References: <158@mnopltd.UUCP>
Sender: royle@news.cs.indiana.edu (keenan royle)
Organization: Computer Science, Indiana University, Bloomington
Lines: 19
Nntp-Posting-Host: iuvax.cs.indiana.edu

In article <158@mnopltd.UUCP> gatech!stiatl!mnopltd!neal writes:
>
>->Is there a way to convince the tty2A driver to automagically change baud
>->rates on Xenix 2.3.2?

Buy a different modem.  I've used the ARK/Paradyne 24K, USR HST or Dual
Standard, and Telebits with the comm port locked and the modem set to
do speed changes.  This leads to much increased work for the sysadmin but
less work for people who don't know how to send BREAKs (or what a BREAK is,
for that matter).  The main problem of this approach (aside from the
additional cost, as modems that do this reliably tend to be more expensive)
is that the line speed seen by software is wrong - it's always the highest
possible.  When the port is locked at 38.4K and the login is at 300 this
can lead to substantial errors...
-- 

Mike Squires (mikes@iuvax.cs.indiana.edu)     812 855 3974 (w) 812 333 6564 (h)
mikes@iuvax.cs.indiana.edu          546 N Park Ridge Rd., Bloomington, IN 47408
Under construction: mikes@sir-alan@cica.indiana.edu