On Mon, Aug 28, 2017 at 08:39:44AM +, Sørensen, Stefan wrote:
> I have run into a problem with packet timestamping on a platform (cpsw
> + dp83640) where both the PHY and the MAC is PTP capable and I need
> the PHY to perform the timestamping. In the current code,
> SIOCGHWTSTAMP is passed to t
On Wed, Sep 07, 2016 at 01:55:19PM -0700, Daniel Walker wrote:
> So the code only allows second granularity negative updates,
No.
> or the seconds
> component is the only part which needs to actually be negative ?
Yes.
See the function, clockadj_step, in linuxptp/clockadj.c for a working
user s
On 09/07/2016 01:48 PM, Richard Cochran wrote:
On Wed, Sep 07, 2016 at 01:40:59PM -0700, Daniel Walker wrote:
There is a test (below) , which prevents negative nanosecond updates. The
code below would force a negative update to always return more than
NSEC_PER_SEC. It should be using abs() inste
On Wed, Sep 07, 2016 at 01:40:59PM -0700, Daniel Walker wrote:
> There is a test (below) , which prevents negative nanosecond updates. The
> code below would force a negative update to always return more than
> NSEC_PER_SEC. It should be using abs() instead which would return the value
> desired.
