From owner-freebsd-current@FreeBSD.ORG  Fri Oct 29 10:27:00 2004
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 270DF16A4CE
	for <current@freebsd.org>; Fri, 29 Oct 2004 10:27:00 +0000 (GMT)
Received: from alpha.siliconlandmark.com (alpha.siliconlandmark.com
	[209.69.98.4])	by mx1.FreeBSD.org (Postfix) with ESMTP id C2CFC43D5A
	for <current@freebsd.org>; Fri, 29 Oct 2004 10:26:59 +0000 (GMT)
	(envelope-from andy@siliconlandmark.com)
Received: from alpha.siliconlandmark.com (andy@localhost [127.0.0.1])
	i9TAQvSU090301;	Fri, 29 Oct 2004 06:26:57 -0400 (EDT)
	(envelope-from andy@siliconlandmark.com)
Received: from localhost (andy@localhost)i9TAQklf090298;
	Fri, 29 Oct 2004 06:26:57 -0400 (EDT)
	(envelope-from andy@siliconlandmark.com)
X-Authentication-Warning: alpha.siliconlandmark.com: andy owned process doing
	-bs
Date: Fri, 29 Oct 2004 06:26:46 -0400 (EDT)
From: Andre Guibert de Bruet <andy@siliconlandmark.com>
To: "Thomas E. Zander" <riggs@rrr.de>
In-Reply-To: <20041029081900.GH701@marvin.riggiland.au>
Message-ID: <20041029062021.R82803@alpha.siliconlandmark.com>
References: <20041029075930.GG701@marvin.riggiland.au>
	<20041029080817.GB728@empiric.icir.org>
	<20041029081900.GH701@marvin.riggiland.au>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
X-MailScanner-Information: Please contact the ISP for more information
X-MailScanner: Found to be clean
cc: current@freebsd.org
Subject: Re: EHCI considered harmful?
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 29 Oct 2004 10:27:00 -0000


On Fri, 29 Oct 2004, Thomas E. Zander wrote:

> On Fri, 29. Oct 2004, at  1:08 -0700, Bruce M Simpson wrote
> according to [Re: EHCI considered harmful?]:
>
>> ehci(4) is not stable code and fails reproducibly with my ALi-based
>> USB2 disk enclosure.
>
> Well, okay then. I was just wondering because it doesn't appear on
> Scott's todo-list for 5.3-R and it seems to accidently work on my
> box :-)

This is my understanding of the current state of our USB ehci support: 
ehci only works with certain chipsets. On the ones that it does work with, 
you do not want to have a USB2 hub connected (With ehci in your config) as 
it will not be supported. Removing ehci from your kernel lets you use a 
USB2 hub in 1.1 mode.

Andy

| Andre Guibert de Bruet | Enterprise Software Consultant >
| Silicon Landmark, LLC. | http://siliconlandmark.com/    >