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Date:	Thu, 30 Jan 2014 16:42:30 -0500
From:	Mark Lord <>
To:	Sarah Sharp <>,
	David Laight <David.Laight@...LAB.COM>
CC:	"" <>,
	"" <>,
	Greg Kroah-Hartman <>,
	David Miller <>,
	Dan Williams <>,
	"Nyman, Mathias" <>,
	Alan Stern <>,
	Freddy Xin <>
Subject: Re: [PATCH RFC 1/1] usb: Tell xhci when usb data might be misaligned

Sarah, on a related note:

Is there a parameter or knob of some kind to tell the XHCI driver
to treat a specific port as USB2 (480mbit/sec max) rather than USB3 ?

The Dell XPS-13 Ultrabooks all suffer from some kind of flaw, whereby the left side
USB3 port is unreliable at SuperSpeed; the right side port works flawlessly.
The MS-Windows driver has a workaround of some sort, but we don't.

Mark Lord
Real-Time Remedies Inc.
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