Linuxptp
- hwstamp_ctl(8) set time stamping policy at the driver level
- nsm(8) NetSync Monitor client
- phc_ctl(8) directly control PHC device clock
- phc2sys(8) synchronize two or more clocks
- pmc(8) PTP management client
- ptp4l(8) ptp4l - PTP Boundary/Ordinary/Transparent Clock
- timemaster(8) timemaster - run NTP with PTP as reference clocks
- ts2phc(8) ts2phc - Synchronizes one or more PTP Hardware Clocks using external time stamps.