From: Oliver Neukum <oliver@neukum.org>
To: Greg KH <greg@kroah.com>
Subject: Re: Repeated USB disconnect and reconnect with Wacom Intuos3 6x11 tablet
Date: Thu, 15 Dec 2005 19:03:54 +0100
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Cc: Denny Priebe <spamtrap@siglost.org>, linux-kernel@vger.kernel.org
References: <20051213184600.GA4283@nostromo.dyndns.info> <20051215144254.GA19794@nostromo.dyndns.info> <20051215163122.GC14512@kroah.com>
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Am Donnerstag, 15. Dezember 2005 17:31 schrieb Greg KH:
> > Could it be that the usb driver doesn't check for a connect status change
> > while there's a process reading /dev/input/{mouse,event}? so that I do not
> > see these disconnects while reading the tablet data? 
> 
> No, it's an electronic signal happening on the USB hub, the hub notifies
> the kernel when a disconnect happens, it has nothing to do with the
> driver connected to the actual device.
> 
> So I really think that this is an electronic issue, sorry. ?Can you
> return this device and get a replacement one?

We start the URB on open and stop it on close. Is it possible that
Windows keeps it on all the time and we have a device that is so
broken it cannot cope with anything else?

	Regards
		Oliver
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