On Fri, Jun 15, 2018 at 09:59:04AM +0000, Jord Pool wrote:
> So I found that when launching ptp4l it automatically assigns itself
> a /dev/ptp* device. One time it assigns /dev/ptp2, another time it
> assigns /dev/ptp4 etc very random. I have a total of 5 devices:
> /dev/ptp0, /dev/ptp1, /dev/ptp2, /dev/ptp3 and /dev/ptp4.
How many MACs do you have? Five or more?
If `ptp4l -i enp0s25` chooses different /dev/ptp* every time you stop
and start again, then something is very broken in your kernel. (After
a reboot, however, the /dev/ptp* number might have changed. That is
why you can only give ptp4l the interface.)
> Phc2sys is launched at the same time by using # phc2sys -c /dev/ptp0
> -s CLOCK_REALTIME -m -q -w.
Just use the automatic mode of phc2sys:
phc2sys -a -r -r -m -q
> When specifying /dev/ptp0 in the ptp4l command (# ptp4l -i enp0s25
> /dev/ptp0 -m -q -4 -H) it still automatically chooses another
> /dev/ptp* device. When not specifying enp0s25 but only the device (#
> ptp4l -i /dev/ptp0 -m -q -4 -H) it returns the following message:
You cannot specifiy the PTP device to ptp4l, only the network
interface.
HTH,
Richard
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