Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758021Ab0GNWoB (ORCPT ); Wed, 14 Jul 2010 18:44:01 -0400 Received: from ksp.mff.cuni.cz ([195.113.26.206]:46585 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756571Ab0GNWn7 (ORCPT ); Wed, 14 Jul 2010 18:43:59 -0400 Date: Wed, 14 Jul 2010 15:24:34 +0200 From: Pavel Machek To: Piotr Gluszenia Slawinski Cc: Dave Airlie , Timothy Meade , linux-arm-msm@vger.kernel.org, Saravana Kannan , LKML , dri-devel Subject: Re: Closed source userspace graphics drivers with an open source kernel component Message-ID: <20100714132434.GC3103@ucw.cz> References: <1278026975.7738.89.camel@c-dwalke-linux.qualcomm.com> <1278029284.7738.116.camel@c-dwalke-linux.qualcomm.com> <4C2D3066.9040104@codeaurora.org> <1278038796.19705.21.camel@clockmaker-el6> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1184 Lines: 28 Hi! > >There is no point supporting companies that give you a little bit of > >information in exchange they want the support that being in a mainline > >kernel gives. Its an unfair exchange of knowledge and time, and if they > >claim they have to make a profit then its even more unfair. > > also, they seem to do it quite wrong way. i.e. much simpler would be > to just implement regular, open driver , and implement additional > crypto > mechanism in chipset itself, allowing to use simple userspace program > sending certified keys allowing GPU to operate. What is going on there? Does msm actually use crypto to prevent you from use hardware you bought? Are the keys device-specific? What prevents me from reverse-engineering their binary and publishing them? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- 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/