From: Richard Cochran <richardcochran@gmail.com>
To: Christopher Hall <christopher.s.hall@intel.com>
Cc: tglx@linutronix.de, john.stultz@linaro.org,
john.ronciak@intel.com, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH v3] Add support for driver cross-timestamp to PTP_SYS_OFFSET ioctl
Date: Thu, 9 Jul 2015 16:57:48 +0200 [thread overview]
Message-ID: <20150709145748.GC3243@netboy> (raw)
In-Reply-To: <1436388401-32168-1-git-send-email-christopher.s.hall@intel.com>
On Wed, Jul 08, 2015 at 01:46:41PM -0700, Christopher Hall wrote:
> This patch allows system and device time ("cross-timestamp") to be
> performed by the driver. Currently, the cross-timestamping is performed
> in the PTP_SYS_OFFSET ioctl. The PTP clock driver reads gettimeofday()
> and the gettime64() callback provided by the driver. The cross-timestamp
> is best effort where the latency between the capture of system time
> (getnstimeofday()) and the device time (driver callback) may be
> significant.
The interface looks okay to me. Now all we need is a user of it...
Acked-by: Richard Cochran <richardcochran@gmail.com>
next prev parent reply other threads:[~2015-07-09 14:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 20:46 [PATCH v3] Add support for driver cross-timestamp to PTP_SYS_OFFSET ioctl Christopher Hall
2015-07-09 14:57 ` Richard Cochran [this message]
2015-07-14 1:51 ` Hall, Christopher S
2015-07-09 22:01 ` David Miller
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