From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758044AbXKNMLl (ORCPT ); Wed, 14 Nov 2007 07:11:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754881AbXKNMLe (ORCPT ); Wed, 14 Nov 2007 07:11:34 -0500 Received: from mail.gmx.net ([213.165.64.20]:54217 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752949AbXKNMLd (ORCPT ); Wed, 14 Nov 2007 07:11:33 -0500 X-Authenticated: #24128601 X-Provags-ID: V01U2FsdGVkX18ueGwxrjAuDCPwjuLKJL/yIsNEv6Mghp/0rFgNr4 QLUx0sRj35Nh9N Date: Wed, 14 Nov 2007 13:11:33 +0100 From: Sebastian Kemper To: Alan Cox Cc: linux-kernel Subject: Re: libata/PATA: GPCMD_SET_STREAMING via SG_IO does nothing Message-ID: <20071114121133.GA5253@section-eight> References: <20071113164323.GA5252@section-eight> <20071113212230.77cadecd@the-village.bc.nu> <20071113232859.GA4681@section-eight> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071113232859.GA4681@section-eight> User-Agent: Mutt/1.5.16 (2007-06-09) X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 14, 2007 at 12:28:59AM +0100, Sebastian Kemper wrote: > http://svn.mplayerhq.hu/mplayer/trunk/stream/stream_dvd.c?view=markup > > See dvd_set_speed(). The drive I'm using is an Optiarc DVD RW AD-7170A. > With the "old" ATA driver dvd_set_speed() works, with libata it doesn't. Hello Alan, in the meantime I tried the kernels 2.6.23.1 as well as 2.6.24-rc2. Both show the same behaviour when using libata with AMD/NVIDIA PATA support: GPCMD_SET_STREAMING via SG_IO doesn't have any effect. With these two kernels I didn't try the "old" ATA driver - but I assume it would've worked out (changing your system from ATA to libata and vice versa turned out to be quite time consuming ;)). Regards Sebastian