media/cec/cec-intro.rst

1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _cec-intro:
8 HDMI connectors provide a single pin for use by the Consumer Electronics
10 HDMI cable to communicate. The protocol for CEC version 1.4 is defined
11 in supplements 1 (CEC) and 2 (HEAC or HDMI Ethernet and Audio Return
12 Channel) of the HDMI 1.4a (:ref:`hdmi`) specification and the
13 extensions added to CEC version 2.0 are defined in chapter 11 of the
14 HDMI 2.0 (:ref:`hdmi2`) specification.
17 and is based on the ancient AV.link protocol used in old SCART
24 In addition, CEC can be implemented in HDMI receivers, transmitters and
25 in USB devices that have an HDMI input and an HDMI output and that
32 In order to check the support and test it, it is suggested to download
33 the `v4l-utils <https://git.linuxtv.org/v4l-utils.git/>`_ package. It
36 - cec-ctl: the Swiss army knife of CEC. Allows you to configure, transmit
39 - cec-compliance: does a CEC compliance test of a remote CEC device to
42 - cec-follower: emulates a CEC follower.