From owner-freebsd-stable@FreeBSD.ORG Tue Mar 25 12:44:22 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 63613106574E; Tue, 25 Mar 2008 12:44:22 +0000 (UTC) (envelope-from bms@incunabulum.net) Received: from out3.smtp.messagingengine.com (out3.smtp.messagingengine.com [66.111.4.27]) by mx1.freebsd.org (Postfix) with ESMTP id 3AA218FC24; Tue, 25 Mar 2008 12:44:21 +0000 (UTC) (envelope-from bms@incunabulum.net) Received: from compute1.internal (compute1.internal [10.202.2.41]) by out1.messagingengine.com (Postfix) with ESMTP id 7DD15E31DC; Tue, 25 Mar 2008 08:44:21 -0400 (EDT) Received: from heartbeat2.messagingengine.com ([10.202.2.161]) by compute1.internal (MEProxy); Tue, 25 Mar 2008 08:44:21 -0400 X-Sasl-enc: 9iGgBy9+eOTVjTixGeGiJmcW5eGHe7WkhX0eaaD9ZCvU 1206449061 Received: from empiric.lon.incunabulum.net (82-35-112-254.cable.ubr07.dals.blueyonder.co.uk [82.35.112.254]) by mail.messagingengine.com (Postfix) with ESMTPSA id D84C030520; Tue, 25 Mar 2008 08:44:20 -0400 (EDT) Message-ID: <47E8F3A4.50807@incunabulum.net> Date: Tue, 25 Mar 2008 12:44:20 +0000 From: Bruce M Simpson User-Agent: Thunderbird 2.0.0.9 (X11/20080207) MIME-Version: 1.0 To: Ian Smith References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: nsouch@freebsd.org, FreeBSD stable Subject: Re: lpbb broken in 6.x? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Mar 2008 12:44:22 -0000 Ian Smith wrote: > To finish off completely hijacking your thread :) does anyone know of > anything that can run a master/slave interface like pcf(4) which appears > to have been an ISA bus only device? I don't have C skills to write > one, though 400kHz master and slave routines in AVR asm were fun :) > > Later: after nearly losing this in a pine crash (don't ask), I've since > seen John's reply to your later message. Could it be that smbus or > something is also using iicbus rather than something messing with ppbus? > Thanks for the hints. I don't have smbus in the kernel, nor do I have any other i2c device drivers loaded in the system. I stopped using smbus when it became pretty clear that it wasn't doing anything useful for me (it could never see CPU fan readouts or anything like that when I tried it on 3 different PIII era systems). I agree a pcf(4) style interface would go some way towards solving the problem, however, solder plus 74LS05 costs next to nothing, plus the "leet value" of having a circuit schematic in the man page had to be tried out. I think we're losing out there if it's not working, though. PS OpenBSD look like they took NetBSD's i2c and ran with it... cheers BMS