Hi! Thanks all for the answers so far.
> David Woolley wrote: > As I understand it, he is replacing the kernel clock's role, so he > needs to replace all the system calls that read and discipline the > kernel clocks by ones that read and discipline the special hardware. Correct. I have a PCI network card which runs it's own internal clock. I made a literature research and couldn't find anyone implementing NTP with hardware support for timestamping. Since I can modify the FPGA based card, my first step is to get NTPd discipline the clock on the card, that's why I have to replace all the system calls to the kernel clock ... Richard B. Gilbert wrote: > It might be useful to know exactly what hardware is in use. Some of the > fancier clocks have provision for GPS input. I believe that both > Meinberg and Symmetricomm offer such. I believe that both companies > offer driver software for these clocks allowing you to read and set them > and, perhaps, offering other functions as well. > Normally, I would just use a normal mainboard with a special oscillator, but that doesn't solve my problem. As far as I could find out, nobody so far modified the clock to be disciplined in NTP ... Regards, Patrick _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
