From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Riesch Subject: Re: [PATCH 0/2] [RFC] posix clock tuning Date: Sat, 04 Sep 2010 19:48:02 +0200 Message-ID: <4C828652.4060804@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Christoph Lameter Cc: Richard Cochran , netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-api@vger.kernel.org Christoph Lameter wrote: > On Fri, 3 Sep 2010, Richard Cochran wrote: >> Recently on the lkml, we discussed how to allow adjustment of posix >> clocks. I have tried to understand and implement the ideas expressed >> in the various threads. .... > Could you explain why the existing interfaces are not sufficient that do > what you describe? Richard's idea is to support clock hardware for IEEE 1588 (PTP, Precision Time Protocol). Have a look at the earlier discussions: http://lkml.org/lkml/2010/8/16/90 and http://lkml.org/lkml/2010/8/23/49 Christian