linux-kernel - Re: [MeeGo-dev] [MeeGo-Dev][PATCH] Topcliff: Update PCH

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Message-Id: <201008171325.55761.arnd@arndb.de>
Date:	Tue, 17 Aug 2010 13:25:55 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Richard Cochran <richardcochran@...il.com>
Cc:	Masayuki Ohtake <masa-korg@....okisemi.com>, meego-dev@...go.com,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [MeeGo-dev] [MeeGo-Dev][PATCH] Topcliff: Update PCH_IEEE1588 driver to 2.6.35

On Tuesday 17 August 2010, Richard Cochran wrote:
> On Tue, Aug 17, 2010 at 04:12:45PM +0900, Masayuki Ohtake wrote:
> > Intel Topcliff IEEE1588 device driver API is developed according to Intel
> > Tolapai 1588 device driver.
> > Both APIs are the same.
> 
> But what is the "Intel Tolapai 1588 device driver?"
> 
> Is that a Linux driver?
> 
> If so, where can I find it?

I found it under
http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=17182

That driver was never submitted for inclusion anywhere, so it is not
really relevant here. The APIs are similar, but not identical, most
importantly they use a different ioctl command base number, but also
some of the structures are laid out slightly differently.

Ohtake-san, Richard's code already contains an abstraction for multiple
ieee1588 sources, which looks like it should perfectly fit your purposes.
I don't see room for another user interface, so please try to integrate
into version 5 of his ptp code.

	Arnd
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