From owner-freebsd-usb@FreeBSD.ORG  Thu Aug 25 19:04:54 2011
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From: Hans Petter Selasky <hselasky@c2i.net>
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Date: Thu, 25 Aug 2011 21:02:20 +0200
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Subject: Re: device reset
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On Thursday 25 August 2011 21:00:17 Mike Tancsa wrote:
> I am having periodic problems with the odd u3g device that gets hung.
> If I try and reset it, it totally locks up and I need to do a reboot of
> the box the recover. Apart from usbconfig reset are is there anything
> else I can do to recover from such a situation ?

Hi,

Have you tried using an external self-powered HUB?

There has been some patches to auto-reset non-responding USB devices, which 
you might try which was committed to 8-stable not long ago.

Connect an external power relay to force the device to reset :-)

--HPS