linux-kernel - Re: [PATCH 1/3] arch/tile: provide kernel support for the tilegx USB shim

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Date:	Fri, 6 Jul 2012 13:59:48 -0400
From:	Chris Metcalf <cmetcalf@...era.com>
To:	Greg KH <greg@...ah.com>
CC:	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 1/3] arch/tile: provide kernel support for the tilegx
 USB shim

On 7/6/2012 1:36 PM, Greg KH wrote:
> On Wed, May 09, 2012 at 12:25:02PM -0400, Chris Metcalf wrote:
>> This change adds support for accessing the USB shim from within the
>> kernel.  Note that this change by itself does not allow the kernel
>> to act as a host or as a device; it merely exposes the built-in on-chip
>> hardware to the kernel.
> What do you mean by this?  This is needed for the other patches, right?
> If so, I'm guessing they are going through the tile tree?  That's fine
> with me.

Correct; this piece just adds the infrastructure that lets you then layer
the standard USB host code on top.  I'm assuming I'll push both the tilegx
USB infrastructure, and the drivers/usb/host stuff, through the tile tree. 
Or, I can push just the low-level stuff through the tile tree and let the
USB host stuff go through the usb tree.

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com



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