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From: Hans Petter Selasky <hselasky@c2i.net>
To: Mike Tancsa <mike@sentex.net>
Date: Wed, 11 May 2011 18:24:39 +0200
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Cc: freebsd-usb@freebsd.org
Subject: Re: usb errors on RELENG_8
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On Wednesday 11 May 2011 18:10:57 Mike Tancsa wrote:
> On 5/11/2011 2:21 AM, Hans Petter Selasky wrote:
> > Try to send this USB control request to the HUB and then re-plug the
> > device. Does it help?
> > 
> > usbconfig -d X.Y do_request 0x23 0x09 0x0000 0x0001 0
> 
> Hi,
> 	I get this command
> 
> 0[upsmon1]# usbconfig -d 1.8 do_request 0x23 0x09 0x0000 0x0001 0
> REQUEST = <OK>
> 0[upsmon1]#
> 
> It seems to quiet things down. What does the command do ?
> 
> 	---Mike

Hi,

It resets the transaction translator of the high speed HUB. Probably we could 
issue that command before or after resetting the USB port.

--HPS