From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261302AbUL2CLW (ORCPT ); Tue, 28 Dec 2004 21:11:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261304AbUL2CLV (ORCPT ); Tue, 28 Dec 2004 21:11:21 -0500 Received: from out005pub.verizon.net ([206.46.170.143]:25593 "EHLO out005.verizon.net") by vger.kernel.org with ESMTP id S261302AbUL2CLE (ORCPT ); Tue, 28 Dec 2004 21:11:04 -0500 From: Gene Heskett Reply-To: gene.heskett@verizon.net Organization: Organization: None, detectable by casual observers To: linux-kernel@vger.kernel.org Subject: Need hardware (chip) guru Date: Tue, 28 Dec 2004 21:10:59 -0500 User-Agent: KMail/1.7 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200412282110.59601.gene.heskett@verizon.net> X-Authentication-Info: Submitted using SMTP AUTH at out005.verizon.net from [151.205.45.252] at Tue, 28 Dec 2004 20:11:00 -0600 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Greetings; I've read through the Intel pdf doc sheets on the Intel 82c55 about 4 times now, looking for clues, but everything about the control register seems to be write only. Their logic diagrams don't even acknowledge the existance of the control register. Is there anyone here who can tell me how to read the current status of the ctl register in an 82C55? The std inb(ctl_address, byte); is returning 0xff regardless of what I write with the corresponding outb statement <10 microseconds in front of the read. I hate trying to program stuff this badly blinded by what appares to be a hardware limitation. ):>8 -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) 99.30% setiathome rank, not too shabby for a WV hillbilly Yahoo.com attorneys please note, additions to this message by Gene Heskett are: Copyright 2004 by Maurice Eugene Heskett, all rights reserved.