From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271196AbTGWSI4 (ORCPT ); Wed, 23 Jul 2003 14:08:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271197AbTGWSI4 (ORCPT ); Wed, 23 Jul 2003 14:08:56 -0400 Received: from crosslink-village-512-1.bc.nu ([81.2.110.254]:62458 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S271196AbTGWSIu (ORCPT ); Wed, 23 Jul 2003 14:08:50 -0400 Subject: Re: compact flash IDE hot-swap summary please From: Alan Cox To: Dave Lawrence Cc: Linux Kernel Mailing List In-Reply-To: <3F1ECFDD.D561D861@integrinautics.com> References: <3F1ECFDD.D561D861@integrinautics.com> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1058984303.5515.105.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 23 Jul 2003 19:18:23 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mer, 2003-07-23 at 19:11, Dave Lawrence wrote: > I have a Zaurus handheld that runs Linux that seems > to be able to hot-swap its IDE compact flash device > with no problems. But I've read in a recent > thread "hdparm and removable IDE?" that hot-swap > isn't "fully" supported and that is won't be > until: Thats hot swapping an IDE controller (built into the CF and PCMCIA stuff) Drive level hotswap is supported only in the "I unmounted it all properly first" case and providing your system has the required bus isolation. Typically its also only allowed in IDE if you have a single disk on the channel. With dual device you tend to have nasty accidents pulling something out while the other device is "live"