From owner-freebsd-current@FreeBSD.ORG Thu Apr 5 18:40:49 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9B2B916A405 for ; Thu, 5 Apr 2007 18:40:49 +0000 (UTC) (envelope-from ticso@cicely12.cicely.de) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) by mx1.freebsd.org (Postfix) with ESMTP id 2BE4613C455 for ; Thu, 5 Apr 2007 18:40:48 +0000 (UTC) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de ([10.1.1.7]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id l35IM4DQ054160; Thu, 5 Apr 2007 20:22:04 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [10.1.1.14]) by cicely5.cicely.de (8.13.4/8.13.4) with ESMTP id l35ILvQd073826 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 5 Apr 2007 20:21:57 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.13.4/8.13.3) with ESMTP id l35ILuAM010145; Thu, 5 Apr 2007 20:21:56 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.13.4/8.13.3/Submit) id l35ILuAL010144; Thu, 5 Apr 2007 20:21:56 +0200 (CEST) (envelope-from ticso) Date: Thu, 5 Apr 2007 20:21:56 +0200 From: Bernd Walter To: Nikolas Britton Message-ID: <20070405182155.GJ8831@cicely12.cicely.de> References: <86zm5nrllc.fsf@dwp.des.no> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Operating-System: FreeBSD cicely12.cicely.de 5.4-STABLE alpha User-Agent: Mutt/1.5.9i X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED=-1.8, BAYES_00=-2.599 autolearn=ham version=3.1.7 X-Spam-Checker-Version: SpamAssassin 3.1.7 (2006-10-05) on cicely12.cicely.de Cc: Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?= , FreeBSD Current Subject: Re: Do we need this junk? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Apr 2007 18:40:49 -0000 On Thu, Apr 05, 2007 at 12:56:35PM -0500, Nikolas Britton wrote: > On 4/5/07, Dag-Erling Smørgrav wrote: > >"Nikolas Britton" writes: > >> Can anything in the list below be removed from CURRENT? > > > >No. Modern i386 and amd64 still have an ISA bus, and devices > >connected to that bus, even if they don't have ISA slots. > > > > What you speak of is the LPC bus. LPC is intended to be a > motherboard-only bus. No connector is defined, and no LPC peripheral > daughterboards are available. LPC is more or less ISA, just reduced to the features the vendors need onboard. So you still need ISA logic for your realtime clock, your PS/2 keyboard, etc... Old doesn't mean useless - PC104, which basicly ISA with different header, are still sold for a good reason. Lot of people with special hardware are still required to run those equipment, because it is not easily replaceable. E.g. blind people still have the requirement to use real ISA cards for their braile equipment, which is quite expensive and not to be wasted easily. > So I come back to the question of why we have external devices from > 1987 still floating around in the kernel and more importantly why > these devices are enabled by default in the GENERIC kern conf? Because people with such hardware need it more than those with fast hardware, for which it won't hurt to recompile a kernel or just live with a few unused bytes - an unused meg won't hurt on a 1G box. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de