From owner-freebsd-usb@FreeBSD.ORG  Wed Feb 11 23:37:00 2009
Return-Path: <owner-freebsd-usb@FreeBSD.ORG>
Delivered-To: freebsd-usb@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id AC62D106568A;
	Wed, 11 Feb 2009 23:37:00 +0000 (UTC) (envelope-from imp@bsdimp.com)
Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85])
	by mx1.freebsd.org (Postfix) with ESMTP id 665058FC16;
	Wed, 11 Feb 2009 23:37:00 +0000 (UTC) (envelope-from imp@bsdimp.com)
Received: from localhost (localhost [127.0.0.1])
	by harmony.bsdimp.com (8.14.2/8.14.1) with ESMTP id n1BNYsHo082734;
	Wed, 11 Feb 2009 16:34:54 -0700 (MST) (envelope-from imp@bsdimp.com)
Date: Wed, 11 Feb 2009 16:34:54 -0700 (MST)
Message-Id: <20090211.163454.1678771438.imp@bsdimp.com>
To: alfred@freebsd.org
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <20090211225701.GL68801@elvis.mu.org>
References: <sa64oz1lacr.wl%tamaru@myn.rcast.u-tokyo.ac.jp>
	<200902110954.37659.hselasky@c2i.net>
	<20090211225701.GL68801@elvis.mu.org>
X-Mailer: Mew version 5.2 on Emacs 21.3 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Cc: freebsd-usb@freebsd.org
Subject: Re: USB2: umass not detected correctly, axe not transmitting
X-BeenThere: freebsd-usb@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: FreeBSD support for USB <freebsd-usb.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-usb>
List-Post: <mailto:freebsd-usb@freebsd.org>
List-Help: <mailto:freebsd-usb-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
	<mailto:freebsd-usb-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 11 Feb 2009 23:37:01 -0000

In message: <20090211225701.GL68801@elvis.mu.org>
            Alfred Perlstein <alfred@freebsd.org> writes:
: * Hans Petter Selasky <hselasky@c2i.net> [090211 00:52] wrote:
: > Hi,
: > 
: > On Wednesday 11 February 2009, Hiroharu Tamaru wrote:
: > > Hi,
: > >
: > > I have an Atom Z530 semi-embedded system and tried the new USB2 stack.
: > > I found some oddities and decided to report here.
: > >
: > > It is running 8.0-CURRENT as of yesterday, and I have GENERIC and USB2
: > > kernels to test with.  I am testing with two usb devices:
: > >
: > > umass0: <JetFlash Mass Storage Device, class 0/0, rev 2.00/1.00, addr 2> on
: > > usbus3 axe0: <ASIX Electronics AX88178, rev 2.00/0.01, addr 3> on usbus3
: > >
: > > First about the USB memory stick:
: > >
: > > 1) I setup a bootable USB memory stick, and this system
: > >    boots off umass da0 if I have the old USB1 kernel.
: > >    However, with USB2 kernel, it does not detect da0 at its final stage,
: > >    and fails to find the root filesystem.
: > >    I mean that the 'da0 at umass-sim0 bus 0 target 0 lun 0' message is not
: > >    shown, and it is not listed in the kernel detected list of disks at
: > >    'mountroot>' prompt (shown by typing '?').
: > 
: > This is a known issue, see:
: > 
: > http://wiki.freebsd.org/USB
: 
: Is this the "delay in mountroot patch"?  If so, I think it should go
: in.  Can you send to Andrew for commit?  If he's not available, please
: remind me to commit it.

That patch needs comments that say it is a workaround because we don't
have a way to signal the mountroot code that all my configuration is
done.  This is a problem for all hot-plug technologies...

but other than a comment, I'm cool with that patch going in.

Warner