Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756850AbXINNw7 (ORCPT ); Fri, 14 Sep 2007 09:52:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751649AbXINNwv (ORCPT ); Fri, 14 Sep 2007 09:52:51 -0400 Received: from mx1.redhat.com ([66.187.233.31]:57974 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750803AbXINNwu (ORCPT ); Fri, 14 Sep 2007 09:52:50 -0400 Date: Fri, 14 Sep 2007 09:52:37 -0400 From: Alan Cox To: Markus Rechberger Cc: Steven Toth , "akpm@linux-foundation.org" , "video4linux-list@redhat.com" , "linux-dvb@linuxtv.org" , "linux-kernel@vger.kernel.org" Subject: Re: [linux-dvb] [PATCH] Userspace tuner Message-ID: <20070914135237.GB19311@devserv.devel.redhat.com> References: <46C1BCC5.9090709@amd.com> <1189626560.5160.57.camel@gaivota> <20070913131353.GB26972@linuxtv.org> <46E95C54.4060502@gmail.com> <46E99F36.8090809@hauppauge.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1148 Lines: 28 On Fri, Sep 14, 2007 at 01:17:05AM +0200, Markus Rechberger wrote: > what stops vendors of using the current existing code to achieve that > goal. They could provide binary drivers with the existing API. If you feel lucky about the GPL > What stops companies to intercept the ioctl calls and overriding some > I2C commands? The GPL - derivative work is the boundary not code linkage. Possibly a userspace tuner hack would probably fit this too. Especially if a specific vendor is producing both bits together and trying to claim they are independant. > How about proprietary video formats, would you also place the decoding > algorithms in kernel just to force companies to release their code > for it? No, I would assume they'd provide a proprietary conversion library that no nobody would use (just like their hw). We keep format conversion firmly seperated from hardware I/O processing. Alan - 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/