media/v4l/vidioc-g-edid.rst

1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_EDID - VIDIOC_S_EDID - VIDIOC_SUBDEV_G_EDID - VIDIOC_SUBDEV_S_EDID - Get or set the EDID o…
47 from a receiver or an output of a transmitter device. They can be used
48 with subdevice nodes (/dev/v4l-subdevX) or with video nodes
51 When used with video nodes the ``pad`` field represents the input (for
52 video capture devices) or output (for video output devices) index as is
84 To set the EDID blocks of a receiver the application has to fill in the
105 .. flat-table:: struct v4l2_edid
106     :header-rows:  0
107     :stub-columns: 0
110     * - __u32
111       - ``pad``
112       - Pad for which to get/set the EDID blocks. When used with a video
116     * - __u32
117       - ``start_block``
118       - Read the EDID from starting with this block. Must be 0 when
120     * - __u32
121       - ``blocks``
122       - The number of blocks to get or set. Must be less or equal to 256
126     * - __u32
127       - ``reserved``\ [5]
128       - Reserved for future extensions. Applications and drivers must set
130     * - __u8 *
131       - ``edid``
132       - Pointer to memory that contains the EDID. The minimum size is
138 On success 0 is returned, on error -1 and the ``errno`` variable is set
140 :ref:`Generic Error Codes <gen-errors>` chapter.