*BSD News Article 14200


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Newsgroups: comp.os.386bsd.questions
Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!usc!wupost!uunet!bcstec!dmp3592
From: dmp3592@bcstec.ca.boeing.com (Dean M. Phillips)
Subject: Re: Help! My modem is COM4!
Message-ID: <C54IGv.Fr2@bcstec.ca.boeing.com>
Summary: Brief how-to
Reply-To: dean@deanstoy.wa.com
Organization: Boeing 777 Division
References: <1ptc59INN9su@harpo.uccs.edu>
Date: Wed, 7 Apr 1993 17:12:30 GMT
Lines: 23

Here is a real brief explaination of how to add a com port to 386BSD.

Step 1) Address your card appropriately.  The standard COM4 setup uses
the same interupt as COM2.  The com driver does not currently handle
this.  Therefore make sure that all the com ports that you are going
to use are assigned to different I/O ports and interupts.

Step 2) Edit /sys/i386/isa/isa.h and add a line that looks like
#define COM_x 0x...

Step 3) Add a line to your config file in /sys/i386/conf/... which
calls out the new port and interupt.

Step 4) config, make depend, make, install, boot

Thats all there is to it.  If you need examples send me email at home
where my 386bsd system is and I will try to put something together
with a little more detail.
-- 
#include <std_disclaimer.h>
Dean M. Phillips                                    206-294-1024
Boeing Commercial Airplane Group:                   dmp3592@icdfs.ca.boeing.com
Home:                                               dean@deanstoy.wa.com