From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932192AbWDRLEp (ORCPT ); Tue, 18 Apr 2006 07:04:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932186AbWDRLEp (ORCPT ); Tue, 18 Apr 2006 07:04:45 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:3968 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S932179AbWDRLEo (ORCPT ); Tue, 18 Apr 2006 07:04:44 -0400 Subject: Re: [PATCH 1/1] ide: Allow disabling of UDMA for Compact Flash devices From: Alan Cox To: James Ausmus Cc: Bartlomiej Zolnierkiewicz , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org In-Reply-To: References: Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Tue, 18 Apr 2006 12:14:18 +0100 Message-Id: <1145358858.18736.16.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Llu, 2006-04-17 at 16:11 -0700, James Ausmus wrote: > Some IDE -> Compact Flash media adapters are not capable of supporting > UDMA, which can cause very slow boot times when the CF media itself > reports as capable of UDMA transfer speeds. Create Kconfig option to > turn off the UDMA capability bit when media is identified as Compact > Flash. This would be far better if it was a boot time option than a kernel configuration or set using sysfs/procfs controls as users will not want to recompile their kernel in such cases.