From owner-freebsd-hardware  Wed Apr 16 09:51:14 1997
Return-Path: <owner-hardware>
Received: (from root@localhost)
          by freefall.freebsd.org (8.8.5/8.8.5) id JAA07295
          for hardware-outgoing; Wed, 16 Apr 1997 09:51:14 -0700 (PDT)
Received: from lariat.lariat.org ([129.72.251.2])
          by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id JAA07287
          for <freebsd-hardware@freebsd.org>; Wed, 16 Apr 1997 09:51:03 -0700 (PDT)
Received: from solo.lariat.org ([129.72.251.10])
	by lariat.lariat.org (8.8.5/8.8.5) with SMTP id KAA02907;
	Wed, 16 Apr 1997 10:49:55 -0600 (MDT)
Message-Id: <3.0.32.19970416104604.006b0dc4@lariat.org>
X-Sender: brett@lariat.org
X-Mailer: Windows Eudora Pro Version 3.0 (32)
Date: Wed, 16 Apr 1997 10:49:45 -0600
To: gurney_j@resnet.uoregon.edu, luiz@nlink.com.br
From: Brett Glass <brett@lariat.org>
Subject: Re: talk to I/O Devices.
Cc: freebsd-hardware@freebsd.org
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Sender: owner-hardware@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

At 07:53 AM 4/16/97 -0600, jmg@hydrogen.nike.efn.org wrote:
 
>this is relativily easy...  all you need to do is open the /dev/io file...

Fascinating. What does opening this "file" actually do? (I can't find it
in the source.)

--Brett