Here the driver shall set the ``std`` field of struct
:ref:`v4l2_input <v4l2-input>` and struct
-:ref:`v4l2_output <v4l2-output>` to zero and the ``VIDIOC_G_STD``,
-``VIDIOC_S_STD``, ``VIDIOC_QUERYSTD`` and ``VIDIOC_ENUMSTD`` ioctls
+:ref:`v4l2_output <v4l2-output>` to zero and the :ref:`VIDIOC_G_STD`,
+:ref:`VIDIOC_S_STD <VIDIOC_G_STD>`, :ref:`VIDIOC_QUERYSTD` and :ref:`VIDIOC_ENUMSTD` ioctls
shall return the ENOTTY error code or the EINVAL error code.
Applications can make use of the :ref:`input-capabilities` and