Richard: Thank you very much for the reply and information. This is appreciated and helpful. This information narrowed down my field of search and reviewing the code helped answer some further questions I had.
Regards, JS On Mon, Nov 20, 2023 at 4:52 PM Richard Cochran <richardcoch...@gmail.com> wrote: > On Mon, Nov 20, 2023 at 12:54:03PM -0500, Jean-Sebastien Stoezel wrote: > > > When it comes to software timestamping, what is the PHC equivalent on the > > device? Is it a hardware timer? Or is it purely software? ethtool is > > reporting no PHC, and so I'd assume the PHC is some sort of software > timer > > somewhere in the kernel. > > With software timestamping, ptp4l adjusts the Linux system clock > (CLOCK_REALTIME) directly. > > HTH, > Richard >
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