Re: [Linuxptp-users] PMC Without Root

[Jason L. <ja...@as...>]

Hi Martin,

This is exactly the info I needed to make the pmc call work!

Thanks,

Jason



On 10/3/2022 9:52 AM, Martin Pecka wrote:
>
> Hi Jason, that's what the readonly UDS socket is for. With default 
> configuration and PTP4L master branch, this is how you can query 
> TIME_STATUS_NP without root:
>
> pmc -u -s /var/run/ptp4lro -i /tmp/pmc.socket "GET TIME_STATUS_NP"
>
> The key is to supply the "-s /var/run/ptp4lro" which points to the 
> read-only socket. You also need to pass "-i /tmp/pmc.socket" or 
> something similar - this points to the path where PMC should create 
> its own socket. By default, it is /var/run/pmc.$pid, but that location 
> is not writable for non-root users. So I just usually point it to /tmp 
> (this socket is practically useless).
>
> Martin
>
> --
> Mgr. Martin Pecka, Ph.D.
> Researcher at Vision for Robotics and Autonomous Systems group
> Faculty of Electrical Engineering
> Czech Technical University in Prague
> Phone: +420 22435 7269