Re: [Linuxptp-users] Set currentUtcOffsetValid in configuration file

2023-03-13 Thread Richard Cochran
On Mon, Mar 13, 2023 at 10:29:55AM +0700, James Clark wrote: > Would it make sense to set currentUtcOffsetValid to 1 if the TAI > offset is set in the kernel to a non-zero value (which would typically > come from running an NTP server)? The time in the PHC is not necessarily connected to the Linu

Re: [Linuxptp-users] Set currentUtcOffsetValid in configuration file

2023-03-12 Thread James Clark
On Mon, Mar 13, 2023 at 9:07 AM Richard Cochran wrote: > > The UTC > offset can only be valid if the computer has access to the global time > distribution system (ie GPS or NTP) and monitors leap second > announcements in real time. > > A hard coded configuration setting would be morally wrong!

Re: [Linuxptp-users] Set currentUtcOffsetValid in configuration file

2023-03-12 Thread Richard Cochran
On Mon, Mar 13, 2023 at 01:31:56AM +0100, Georg Sauthoff wrote: > However, I'm curious, is this a deliberate design decision to not provide > a configuration setting for the currentUtcOffsetValid value, as well? > Or is such configuration simply missing because nobody has bothered adding > one?

[Linuxptp-users] Set currentUtcOffsetValid in configuration file

2023-03-12 Thread Georg Sauthoff
Hello, by default, ptp4l sends its PTP announce messages with currentUtcOffset set to 37 and currentUtcOffsetValid set to 0. AFAICS, there is no configuration file pragma for setting currentUtcOffsetValid to 1 to make sure that ptp4l is always sending all announce messages with that value. I kno