Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uunet!ispi!jbayer
From: jbayer@ispi.UUCP (Jonathan Bayer)
Newsgroups: comp.unix.wizards
Subject: Re: xenix system V tty device drivers
Message-ID: <1279@ispi.UUCP>
Date: 16 Jan 90 15:35:45 GMT
References: <1221@cirrusl.UUCP> <8888.25adfbd6@ecs.umass.edu> <1236@cirrusl.UUCP>
Distribution: all
Organization: Intelligent Software Products, Inc.
Lines: 21

saeed@sunseeker.UUCP (Saeed Talebbeik) writes:

>yes there is a section in xenix manual for writing a tty driver but it is 
>only 500 lines. The SCO tech support claims that a true blue tty driver 
>is about 2000 lines. We are missing 1500 lines ! What are they ? What does
>that 1500 line is supposed to do ? That is exactly the problem. What are
>the issues involved that have to be addressed in that 1500 lines ?
>I guess except having access to a sample tty driver source code and running 
>through it there is no way of writing a tty driver for a novice 


I have found that SCO Tech Support makes mistakes in questions like
these.  I was able to implement the serial driver as printed in the
manual.  It doesn't have modem control, but it does work.


JB
-- 
Jonathan Bayer		Intelligent Software Products, Inc.
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