section discussing the :ref:`read() <func-read>` function.
To get and set the streaming parameters applications call the
-:ref:`VIDIOC_G_PARM` and
+:ref:`VIDIOC_G_PARM <VIDIOC_G_PARM>` and
:ref:`VIDIOC_S_PARM <VIDIOC_G_PARM>` ioctl, respectively. They take
a pointer to a struct :ref:`v4l2_streamparm <v4l2-streamparm>`, which
contains a union holding separate parameters for input and output