From owner-freebsd-usb@FreeBSD.ORG  Wed May  4 08:05:17 2011
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From: Hans Petter Selasky <hselasky@c2i.net>
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Date: Wed, 4 May 2011 10:04:05 +0200
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Subject: Re: ugen device repeatedly disconnected after upgrade to 8.1
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On Wednesday 04 May 2011 00:29:32 freebsd@johnea.net wrote:
> > Could you try 8-stable?
> 
> I've always used binary updates on this machine.  What about 8.2?

Then you would need to wait for 8.3.

> 
> > Also it might be worth trying an XHCI (USB 3.0) host controller device.
> 
> I'm not exactly sure how I would do this. Do you mean to insert a usb 3 hub
> between the UPS and the host machine?

USB 3.0 is usually sold as a PCI express card.

--HPS