- Subject: Re: [PATCH V14 1/4] ptp: Added a brand new class driver for ptp clocks.
- From: Arnd Bergmann <arnd@xxxxxxxx>
- Date: Mon, 18 Apr 2011 08:54:35 +0200
- Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-api@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, devicetree-discuss@xxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxx>, David Miller <davem@xxxxxxxxxxxxx>, John Stultz <john.stultz@xxxxxxxxxx>, Krzysztof Halasa <khc@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Rodolfo Giometti <giometti@xxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, Mike Frysinger <vapier@xxxxxxxxxx>, Paul Mackerras <paulus@xxxxxxxxx>, Russell King <linux@xxxxxxxxxxxxxxxx>
- In-reply-to: <7cabcc0bbd14733fa979fe08deccab8939204f24.1303107532.git.richard.cochran@xxxxxxxxxx>
- References: <cover.1303107532.git.richard.cochran@xxxxxxxxxx> <7cabcc0bbd14733fa979fe08deccab8939204f24.1303107532.git.richard.cochran@xxxxxxxxxx>
- User-agent: KMail/1.12.2 (Linux/2.6.37; KDE/4.3.2; x86_64; ; )
On Monday 18 April 2011, 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 <richard.cochran@xxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
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