.. index:: pair: group; Get PTP clock capabilities
.. _doxid-group__ptp-clock__caps:

Get PTP clock capabilities
==========================

.. toctree::
	:hidden:

Check that clock cababilities can be obtained for PTP device associated with the tested network interface.

Scenarios: X3-PTP007.



#. Find out PTP device associated with the IUT interface, call **open()** to get its FD.

#. Call **ioctl** (``PTP_CLOCK_GETCAPS``) on the PTP device FD.

#. Check reported capabilities. Frequency adjustment up to 100_000_000 ppb and Pulse Per Second should be supported; there should be at least one external timestamp channel.

Yurij Plotnikov `Yurij.Plotnikov@arknetworks.am <mailto:Yurij.Plotnikov@arknetworks.am>`__



.. rubric:: Parameters:

.. list-table::
	:widths: 20 80

	*
		- env

		- 
		  Testing environment:
		  
		  * :ref:`env.peer2peer <doxid-group__env-peer2peer>`