From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Stultz Subject: Re: [PATCH V13 1/4] ptp: Added a brand new class driver for ptp clocks. Date: Mon, 28 Mar 2011 11:06:35 -0700 Message-ID: <1301335595.21829.0.camel@work-vm> References: <86641738e4c84fbdb105d6f2eb6141d5d13c3190.1301206090.git.richard.cochran@omicron.at> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <86641738e4c84fbdb105d6f2eb6141d5d13c3190.1301206090.git.richard.cochran-3mrvs1K0uXizZXS1Dc/lvw@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Richard Cochran Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Alan Cox , Arnd Bergmann , Christoph Lameter , David Miller , Krzysztof Halasa , Peter Zijlstra , Rodolfo Giometti , Thomas Gleixner , Benjamin Herrenschmidt , Mike Frysinger , Paul Mackerras , Russell King List-Id: linux-api@vger.kernel.org On Sun, 2011-03-27 at 08:38 +0200, Richard Cochran wrote: > This patch adds an infrastructure for hardware clocks that implement > IEEE 1588, the Precision Time Protocol (PTP). A class driver offers a > registration method to particular hardware clock drivers. Each clock is > presented as a standard POSIX clock. > > The ancillary clock features are exposed in two different ways, via > the sysfs and by a character device. > > Signed-off-by: Richard Cochran Acked-by: John Stultz thanks -john