On Wed,  6 Nov 2024 02:07:55 +0100 Arkadiusz Kubalewski wrote:
> +What:                /sys/class/ptp/ptp<N>/ts_point
> +Date:                October 2024
> +Contact:     Arkadiusz Kubalewski <arkadiusz.kubalew...@intel.com>
> +Description:
> +             This file provides control over the point in time in
> +             which the HW timestamp is latched. As specified in IEEE
> +             802.3cx, the latch point can be either at the beginning
> +             or after the end of Start of Frame Delimiter (SFD).
> +             Value "1" means the timestamp is latched at the
> +             beginning of the SFD. Value "2" means that timestamp is
> +             latched after the end of SFD.

Richard has the final say but IMO packet timestamping config does not
belong to the PHC, rather ndo_hwtstamp_set.

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