From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Cochran <richardcochran@gmail.com>
Subject: Re: [PATCH 3/3] net/mlx4_en: Add HW timestamping (TS) support
Date: Thu, 4 Oct 2012 16:27:35 +0200
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Cc: Yevgeny Petrilin <yevgenyp@mellanox.com>,
	"davem@davemloft.net" <davem@davemloft.net>,
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	Or Gerlitz <ogerlitz@mellanox.com>
To: Eugenia Emantayev <eugenia@mellanox.com>
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On Thu, Oct 04, 2012 at 02:08:29PM +0000, Eugenia Emantayev wrote:
> > Also, why not expose your device as a PTP Hardware Clock?
> 
> Hello Richard,
> Could you please clarify the above?
> What do you mean by expose your device as a PTP Hardware Clock?

You could register the driver as PHC class device, described in

   Documentation/ptp/ptp.txt

and then you device will work together along with a user space PTP
stack, like the one I wrote at

   http://linuxptp.sourceforge.net

Thanks,
Richard