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Date: Thu, 4 Oct 2012 14:32:46 +0200
From: Guido van Rooij <guido@gvr.org>
To: Hans Petter Selasky <hselasky@c2i.net>
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Cc: freebsd-usb@freebsd.org
Subject: Re: usb3 umass device on usb2 port not recognised
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On Thu, Oct 04, 2012 at 01:43:39PM +0200, Guido van Rooij wrote:
> On Thu, Oct 04, 2012 at 12:14:47PM +0200, Hans Petter Selasky wrote:
> > On Thursday 04 October 2012 10:33:44 Guido van Rooij wrote:
> > > ct  4 10:31:23 beck kernel: uhub_reattach_port: Port 3 is in Host Mode
> > > Oct  4 10:31:24 beck kernel: uhub_read_port_status: port 3,
> > > wPortStatus=0x0500, wPortChange=0x0001,
> > 
> > Hi,
> > 
> > There is a high speed port detection, but it somehow fails. wPortChange=0x0001
> > 
> > In:
> > sys/dev/usb/controller/ehci.c
> > 
> > Lookup this and you find the reset sequence which is failing.
> > 
> >                 case UHF_PORT_RESET:
> >                         DPRINTFN(6, "reset port %d\n", index);
> > 
> > Suggestions:
> > 
> > a) Do the reset sequence twice.

Did that but did not make a difference.

> > b) Reduce the USB reset delays.

I take it you mean to increase the reset delay? Did that and alos did
not make a difference.

As a side note: I tried the disk on a Ubuntu 12.04 system, and there
it works imediately.

-Guido