Hello, I found a message from 2014 from someone trying to do exactly what I am trying to do (sleep against the ptp clock).
fd = open(/dev/ptp0) ptp = FD_TO_CLOCKID(fd) clock_nanosleep(ptp, TIMER_ABSTIME, ...) // returns ENOTSUPP I gather from this message that such support hadn't been implemented in 2014. https://www.mail-archive.com/linuxptp-users@lists.sourceforge.net/msg00074.html I gather from the ENOTSUPP return that it's also not implemented today. I'm running linux 5.19.7. Just wanted confirmation on that point? Briefly about my usecase; synchronized music playback across multiple devices which are using the same ptp GM clock source. I could run phc2sys on these hosts and then sleep against CLOCK_MONOTONIC. But I had wanted to avoid that, simply because some of the devices (desktop pcs) are being used for things other than this specific application, and I'd not like to takeover the systemwide clock. -Todd _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users