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Date: Wed, 27 Mar 2002 20:00:18 +0100
From: Gunther Mayer <gunther.mayer@gmx.net>
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To: Greg KH <greg@kroah.com>
CC: Jan-Marek Glogowski <glogow@stud.fbi.fh-darmstadt.de>,
        linux-kernel@vger.kernel.org
Subject: Re: USB Microsoft Natural KeyB not recogniced as a HID device
In-Reply-To: <20020325183011.GA29011@kroah.com> <Pine.LNX.4.30.0203251957590.5375-200000@stud.fbi.fh-darmstadt.de> <20020325192216.GD29011@kroah.com>
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Greg KH wrote:

> On Mon, Mar 25, 2002 at 08:07:21PM +0100, Jan-Marek Glogowski wrote:
> > Hi Greg
> >
> > [schnipp]
> > > Can you try the patches at:
> > >       http://marc.theaimsgroup.com/?l=linux-usb-devel&m=101684196109355
> > > and also:
> > >       http://marc.theaimsgroup.com/?l=linux-usb-devel&m=101684207509482
> > >
> > > And let us know if they help you out?
> > [schnapp]
> >
> > Applied both patches - the keyboard is detected again, but I still have
> > some errors in the lsusb-output (see attachment).
>
> Sounds like a device that is lying about it's strings.  If the device
> works, I wouldn't worry about it :)

Greg, bad guessing. This is not the device's fault but the linux usb
drivers are buggy.

The messages:
        bInterfaceClass cannot get string descriptor 1, error = Broken
pipe(32)
        cannot get string descriptor 2, error = Broken pipe(32)

go away after "rmmod hid" (or whatever driver is using the device).

This is a long standing bug.

Regards, Gunther

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