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From: jallen@uxrd1.UUCP (Jon Allen)
Newsgroups: net.unix-wizards
Subject: Re: tty input and output at different speeds?
Message-ID: <120@uxrd1.UUCP>
Date: Thu, 2-Oct-86 08:25:04 EDT
Article-I.D.: uxrd1.120
Posted: Thu Oct  2 08:25:04 1986
Date-Received: Sat, 4-Oct-86 05:40:37 EDT
References: <1342@lsuc.UUCP>
Organization: AT&T Communications, Piscataway NJ
Lines: 12

I once tested split speeds under 4.2BSD a long long time ago.  It seems
to me that it was relatively easy.  I wrote a little progroam that used
ioctl to set two different speeds once I had logged in.  I believe the
4.2 terminal control structure had capabilities for separate input and 
output speeds.  I am not sure this is true in SYS V.  Then I changed the 
speeds on the terminal.  You need two things to do this; a multiplexor
on your computer that can handle split speeds, and a terminal that can
handle split speeds.  Of course to do it nicely at least getty would
have to be hacked.
			-Jon Allen

{...}!ihnp4!acpy01!jallen