From: utzoo!decvax!cca!dove@mit-dspg@sri-unix
Newsgroups: net.unix-wizards
Title: bi-directional ttys
Article-I.D.: sri-unix.1942
Posted: Mon Jun 28 21:58:40 1982
Received: Tue Jun 29 05:52:21 1982

Date: 17 Jun 1982 09:41:05-EDT
Using the 128 bit in the tty minor device number to indicate whether any
outgoing programs are pending on a line, and making incoming programs sleep
while the line is going out, allows a scheme which does not require ANY mods
to either init, getty, uucp, or cu.