[Linuxptp-users] ioctl SIOCETHTOOL failed: No such device

[Tony J. <ton...@gm...>]

Hi,

I'm trying to use PTP on my linux machine:

*OS information:*
Operating System: Ubuntu 20.04.5 LTS
Kernel: Linux 5.15.0-71-generic
Architecture: x86-64

This is the default official Ubuntu version that I have installed from the
.iso image available from the Ubuntu website. Not a custom built OS.

I have installed *linuxptp *with the following command:
sudo apt install linuxptp

But when I try running ptp4l with the following command:
sudo ptp4l -i enox0c379 -m -2 -P -l 6 -q -f $HOME/ptp_config.cfg

I get the following error message:

ptp4l[890.371]: ioctl SIOCETHTOOL failed: No such device
ptp4l[890.371]: PTP device not specified and automatic determination is not
supported. Please specify PTP device.
failed to create a clock

Here is the contents of $HOME/ptp_config.cfg:

[global]
    tx_timestamp_timeout    400
    logMinPdelayReqInterval  3
    logSyncInterval          -4
    logAnnounceInterval      0

How can I specify the PTP device, Isnt it the network interface that I have
already specified?

Thanks for your help
Regards,
Tony