From: utzoo!decvax!cca!gwyn@Brl@sri-unix
Newsgroups: net.unix-wizards
Title: Re:  Why does the (new) tty driver echo some characters in RAW mode?
Article-I.D.: sri-unix.4144
Posted: Wed Nov 17 00:08:05 1982
Received: Thu Nov 18 06:49:15 1982

From:     Doug Gwyn <gwyn@Brl>
Date:     12 Nov 82 19:19:56-EST (Fri)
The correct statement would be that no interpretation is done
on RAW-mode input characters.  ECHO is an orthogonal attribute, as it
should be.  Indeed, current tty drivers provide a large number of
orthogonal characteristics, independently for input and output.
This is because no small set of options can satisfy all applications.