From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751624AbYGXKC7 (ORCPT ); Thu, 24 Jul 2008 06:02:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751630AbYGXKCu (ORCPT ); Thu, 24 Jul 2008 06:02:50 -0400 Received: from aeryn.fluff.org.uk ([87.194.8.8]:63939 "EHLO kira.home.fluff.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750744AbYGXKCt (ORCPT ); Thu, 24 Jul 2008 06:02:49 -0400 Date: Thu, 24 Jul 2008 11:01:44 +0100 From: Ben Dooks To: "Hans J. Koch" Cc: Ben Dooks , Jonathan Cameron , mgross@linux.intel.com, Dmitry Torokhov , LKML , LM Sensors , David Brownell , hmh@hmh.eng.br, Jean Delvare , spi-devel-general@lists.sourceforge.net, Ben Nizette Subject: Re: [spi-devel-general] [Patch 0/4] IndustrialIO subsystem (ADCs, accelerometers etc) Message-ID: <20080724100144.GA8301@fluff.org.uk> References: <488763AD.4050400@gmail.com> <20080723191918.GC26938@trinity.fluff.org> <20080724074124.GB2254@local> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080724074124.GB2254@local> X-Disclaimer: These are my own opinions, so there! User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 24, 2008 at 09:41:25AM +0200, Hans J. Koch wrote: > On Wed, Jul 23, 2008 at 08:19:18PM +0100, Ben Dooks wrote: > > On Wed, Jul 23, 2008 at 06:00:29PM +0100, Jonathan Cameron wrote: > > > Dear All, > > > > > > The need for an industrialio subsystem was discussed in > > > http://lkml.org/lkml/2008/5/20/135 > > > > The name is really bad, this sounds like something for doing large > > scale industrial process control. > > Well, it says "Industrial I/O". To me, this means it handles I/O devices > typically found in industrial applications. Yes, industrial is generally process control of manufacturing processes which in my view is making this sound like it is limiting the field of operations. All the applications we would currently need are things like handheld PDA type devices which are hardly 'industrial' or small consumer measurement systems. > > > > > Firstly thanks to all the people who have contributed to the discussion > > > of this in the past. > > > > > > In brief the intention is provide a kernel subsystem directed towards the > > > handling on sensors (and later related output devices) such as ADC's, > > > accelerometers and many others. > > > > We've already got an perfectly good hwmon framework, do we really need > > to do this again? > > hwmon is designed for slow I/O. It won't handle an ADC that does a few > megasamples/sec. > > Thanks, > Hans -- Ben (ben@fluff.org, http://www.fluff.org/) 'a smiley only costs 4 bytes'