Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932408AbWLPUWW (ORCPT ); Sat, 16 Dec 2006 15:22:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932572AbWLPUWV (ORCPT ); Sat, 16 Dec 2006 15:22:21 -0500 Received: from mustang.oldcity.dca.net ([216.158.38.3]:59968 "HELO mustang.oldcity.dca.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S932408AbWLPUWV (ORCPT ); Sat, 16 Dec 2006 15:22:21 -0500 X-Greylist: delayed 400 seconds by postgrey-1.27 at vger.kernel.org; Sat, 16 Dec 2006 15:22:20 EST Subject: Re: [GIT PATCH] more Driver core patches for 2.6.19 From: Lee Revell To: Jan Engelhardt Cc: =?ISO-8859-1?Q?Hans-J=FCrgen?= Koch , linux-kernel@vger.kernel.org In-Reply-To: References: <20061213195226.GA6736@kroah.com> <200612140949.43270.duncan.sands@math.u-psud.fr> <200612141056.03538.hjk@linutronix.de> Content-Type: text/plain; charset=ISO-8859-1 Date: Sat, 16 Dec 2006 15:13:52 -0500 Message-Id: <1166300032.17059.4.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.6.1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1019 Lines: 23 On Thu, 2006-12-14 at 18:02 +0100, Jan Engelhardt wrote: > On Dec 14 2006 10:56, Hans-J?rgen Koch wrote: > > > >A small German manufacturer produces high-end AD converter cards. He sells > >100 pieces per year, only in Germany and only with Windows drivers. He would > >now like to make his cards work with Linux. He has two driver programmers > >with little experience in writing Linux kernel drivers. What do you tell him? > >Write a large kernel module from scratch? Completely rewrite his code > >because it uses floating point arithmetics? > > They use floating point in (Windows) kernelspace? Oh my. Yes, definitely. For example lots of Windows sound drivers do AC3 decoding in kernelspace. Of course the vendors usually lie and say it's done in hardware... Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/