From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 24 May 2002 10:54:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 24 May 2002 10:54:29 -0400 Received: from twilight.ucw.cz ([195.39.74.230]:61106 "EHLO twilight.ucw.cz") by vger.kernel.org with ESMTP id ; Fri, 24 May 2002 10:54:26 -0400 Date: Fri, 24 May 2002 16:54:17 +0200 From: Vojtech Pavlik To: Martin Dalecki Cc: Vojtech Pavlik , Oleg Drokin , "Gryaznova E." , martin@dalecki.de, Linux Kernel , Reiserfs developers mail-list Subject: Re: [reiserfs-dev] Re: IDE problem: linux-2.5.17 Message-ID: <20020524165417.C10656@ucw.cz> In-Reply-To: <3CECF59B.D471F505@namesys.botik.ru> <3CECFC5B.3030701@evision-ventures.com> <20020523193959.A2613@namesys.com> <3CED004A.6000109@evision-ventures.com> <20020524005057.F27005@ucw.cz> <3CEE1DFE.4080500@evision-ventures.com> <20020524151536.C636@ucw.cz> <3CEE2EE2.1040407@evision-ventures.com> <20020524152054.F636@ucw.cz> <3CEE42D0.8090004@evision-ventures.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 24, 2002 at 03:40:32PM +0200, Martin Dalecki wrote: > Użytkownik Vojtech Pavlik napisał: > > >>Hey what I'm talking about is the "physics" of the hardware. > >>But I would rather expect sane hardware to deal with it transparently > >>to the programmer of the setup registers. > > > > > > Well, when I hear "timer" I think "engineering", not "physics". And a > > timer would have to be visible somewhere. I really don't think the > > controller can tell how many drives it sees unless it measures the > > termination resistance or somesuch. > > Jak się zwał tak się zwał, byle by się dobrze miał :-). > > Anyway measuring the termination resistance is rather trivial > from the electrical point of view... Yes, but trust me that if they don't absolutely have to do it to make it work, they won't do it. IDE hardware is cheap in the first place. -- Vojtech Pavlik SuSE Labs