From owner-freebsd-firewire@FreeBSD.ORG Thu Sep 21 04:03:59 2006 Return-Path: X-Original-To: freebsd-firewire@freebsd.org Delivered-To: freebsd-firewire@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1414B16A403 for ; Thu, 21 Sep 2006 04:03:59 +0000 (UTC) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (gate.funkthat.com [69.17.45.168]) by mx1.FreeBSD.org (Postfix) with ESMTP id 75C2643D46 for ; Thu, 21 Sep 2006 04:03:58 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (z783mxgihtz0fu34@localhost.funkthat.com [127.0.0.1]) by hydrogen.funkthat.com (8.13.6/8.13.3) with ESMTP id k8L43uOx074916; Wed, 20 Sep 2006 21:03:56 -0700 (PDT) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.13.6/8.13.3/Submit) id k8L43tuI074915; Wed, 20 Sep 2006 21:03:55 -0700 (PDT) (envelope-from jmg) Date: Wed, 20 Sep 2006 21:03:55 -0700 From: John-Mark Gurney To: Eric Anderson Message-ID: <20060921040355.GM23915@funkthat.com> Mail-Followup-To: Eric Anderson , mldodson@houston.rr.com, freebsd-firewire@freebsd.org References: <200609191005.17015.mldodson@houston.rr.com> <200609201414.22322.mldodson@houston.rr.com> <20060920194236.GJ23915@funkthat.com> <200609201516.26497.mldodson@houston.rr.com> <4511FF85.1000102@centtech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4511FF85.1000102@centtech.com> User-Agent: Mutt/1.4.2.1i X-Operating-System: FreeBSD 5.4-RELEASE-p6 i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html Cc: freebsd-firewire@freebsd.org, mldodson@houston.rr.com Subject: Re: devfs and hot unplugging firewire device X-BeenThere: freebsd-firewire@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: John-Mark Gurney List-Id: Firewire support in FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Sep 2006 04:03:59 -0000 Eric Anderson wrote this message on Wed, Sep 20, 2006 at 21:57 -0500: > On 09/20/06 15:16, M. L. Dodson wrote: > >On Wednesday 20 September 2006 14:42, John-Mark Gurney wrote: > >>M. L. Dodson wrote this message on Wed, Sep 20, 2006 at 14:14 -0500: > >>>More experimental results on firewire disks and hot unplugging: > >>> > >>>Transcripts of two sessions can be retrieved from > >>>http://siegfried.utmb.edu/bdodson/firewire.on.histidine.txt and > >>>http://siegfried.utmb.edu/bdodson/firewire.on.serine.txt > >>doh, I think I know what your problem is... you need to do three > >>or so fwcontrol -r's before the device will disappear... This is > >>necessary, since each plug causes a rescan, and you don't want devices > >>disappearing when you add your cd drive... It looks like adding a > >>timeout would be a good thing to the device orphan... If the device > >>has been orphaned for more than a minute, drop it, or three or so > >>resets... > > > >That worked. Thanks again! > > It's too bad firewire doesn't act more like USB storage in this case - > you can yank and plug in the same or similar storage using the same > adapter many many times without issue - I've done this many times. USB is a tree w/ hubs... If you have a chain of devices, and need to pull one in the middle, you'd loose the end devices if firewire behaved this way... /me notes that each have their advantages and disadvantages. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."