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Date:   Mon, 11 Oct 2021 19:14:49 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Mohammed Eleffendi <meleffendi@avidyne.com>
Cc:     "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>
Subject: Re: Updated xHCI Specification Document
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On Mon, Oct 11, 2021 at 04:16:20PM +0000, Mohammed Eleffendi wrote:
> Hi, We are implementing a bare-metal driver for the USB xHCI
> controller on Tiger Lake UP3 and need a programming guide/Requirement
> Reference document. The one publicly available, which has Rev 1.2 is
> outdated.

Then contact Intel about this, as this doesn't seem to have much to do
with Linux.

Why not just use Linux instead?

good luck!

greg k-h