diff options
Diffstat (limited to 'Documentation/media/uapi/v4l/vidioc-g-ctrl.rst')
| -rw-r--r-- | Documentation/media/uapi/v4l/vidioc-g-ctrl.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst b/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst index 6ced76016246..53a6ebe6f744 100644 --- a/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst +++ b/Documentation/media/uapi/v4l/vidioc-g-ctrl.rst @@ -35,10 +35,10 @@ Description =========== To get the current value of a control applications initialize the ``id`` -field of a struct :ref:`struct v4l2_control <v4l2-control>` and call the +field of a struct :c:type:`struct v4l2_control <v4l2_control>` and call the :ref:`VIDIOC_G_CTRL <VIDIOC_G_CTRL>` ioctl with a pointer to this structure. To change the value of a control applications initialize the ``id`` and ``value`` -fields of a struct :ref:`struct v4l2_control <v4l2-control>` and call the +fields of a struct :c:type:`struct v4l2_control <v4l2_control>` and call the :ref:`VIDIOC_S_CTRL <VIDIOC_G_CTRL>` ioctl. When the ``id`` is invalid drivers return an ``EINVAL`` error code. When the @@ -55,7 +55,7 @@ These ioctls work only with user controls. For other control classes the :ref:`VIDIOC_TRY_EXT_CTRLS <VIDIOC_G_EXT_CTRLS>` must be used. -.. _v4l2-control: +.. c:type:: v4l2_control .. tabularcolumns:: |p{4.4cm}|p{4.4cm}|p{8.7cm}| @@ -90,13 +90,13 @@ appropriately. The generic error codes are described at the :ref:`Generic Error Codes <gen-errors>` chapter. EINVAL - The struct :ref:`v4l2_control <v4l2-control>` ``id`` is invalid + The struct :c:type:`v4l2_control` ``id`` is invalid or the ``value`` is inappropriate for the given control (i.e. if a menu item is selected that is not supported by the driver according to :ref:`VIDIOC_QUERYMENU <VIDIOC_QUERYCTRL>`). ERANGE - The struct :ref:`v4l2_control <v4l2-control>` ``value`` is out of + The struct :c:type:`v4l2_control` ``value`` is out of bounds. EBUSY |