CEC-COMPLIANCE(1)

NAME
cec-compliance - An application to verify remote CEC devices

SYNOPSIS
cec-compliance [-h] [-d <dev>] [other options]

DESCRIPTION
The cec-compliance utility can be used to test how well remote CEC devices comply with the CEC specification. It can also be used to test the local CEC adapter (with the -A option).

By default it will run through all tests, but if one or more of the feature test options is given, then only those tests will be performed. A set of core tests is always run.

The CEC adapter needs to be configured before it is used to run tests with cec-compliance. Use cec-ctl for configuration.

If the CEC adapter has claimed several logical addresses, the test set is run from each logical address in succession. The remote device needs to report a valid physical address in order to run tests on it.

When running compliance tests, cec-follower should be run on the same adapter. cec-follower will reply to messages that are not handled by cec-compliance. cec-follower will also monitor the device under test for behaviors that are not compliant with the specification. Before each test-run cec-follower should be restarted if it is already running, to initialize the emulated device with a clean and known initial state.

Some tests require interactive mode (with the -i option) to confirm that the test passed. When in interactive mode, the user is asked to observe or perform actions on the remote device. Some tests also give conclusive test results when run in interactive mode.

When testing the local CEC adapter's compliance with the CEC API, there must be at least one remote device present in order to test transmitting and receiving.

The compliance tests can have several possible outcomes besides passing and failing:

    OK The test passed.

    OK (Unexpected) The test passed, but it was unexpected for the device
                        under test to support it. This might for example occur
                        when a TV replies to messages in the Deck Control
                        feature.

    OK (Not Supported) The feature that was tested is not supported by the
                        device under test, and that feature was not mandatory for
                        the device to pass.

    OK (Presumed) Nothing went wrong during the test, but the test cannot
                        positively verify that the required effects of the test
                        occurred. The test runner should verify that the test
                        passed by manually observing the device under test. This
                        is typically the test result for tests that send
                        messages that are not replied to, but which induce some
                        side effect on the device under test, such as a TV
                        switching to another input or sending a Remote Control
                        command.

    OK (Refused) The device supports the feature or message being tested,
                        but responded <Feature Abort> ["Refused"] to indicate
                        that it cannot perform the given operation. This might
                        for example occur when trying to test the One Touch
                        Record feature on a TV with copy protection enabled.

    FAIL The test failed and was expected to pass on the device.

    OK (Expected Failure) Failed but this was expected. This can only happen
                        if the --expect option was used that specified
                        that a particular test would return a FAIL result.

    FAIL (Expected X, got Y) The test returned a different result than was expected.
                        This can only happen if the --expect option was used
                        that specified that a particular test would return a specific
                        non-FAIL result.

Some tests depend on other tests being successful. These are not run if the tests they depend on failed, and they will not be shown in the test listing.

OPTIONS

-d, --device <dev>
    Use device <dev> as the CEC device. If <dev> is a number, then /dev/cec<dev> is used.

-D, --driver <drv>
    Use a cec device that has driver name <drv>, as returned by the CEC_ADAP_G_CAPS ioctl. This option can be combined with -a to uniquely identify a CEC device without having to rely on the device node number.

-a, --adapter <adap-name>
    Use a cec device that has adapter name <adap-name>, as returned by the CEC_ADAP_G_CAPS ioctl. This option can be combined with -D to uniquely identify a CEC device without having to rely on the device node number.

-E, --exit-on-fail
    Exit this application when the first failure occurs instead of continuing with a possible inconsistent state.

-l, --list-tests
    List all tests and the possible test results. This is used by the --expect option.

-e, --expect <test>=<result>
    -n, --expect-with-no-warnings <test>=<result> Fail if the test gave a different result. The --list-tests option lists all the possible tests and what result values can be used.

    This can be used in test scripts to verify that a specific result was returned by the test. One use-case is to verify that an optional feature is actually supported, so an OK result instead of an OK (Not Supported) result is expected.

    It can also be used to accept known failures. In that case the test will not fail, but return an OK (Expected Failure) result.

    The --expect-with-no-warnings variant is more strict and will also check that the test produced no warnings.

-v, --verbose
    Turn on verbose reporting.

--version
    Show version information.

-w, --wall-clock
    Show timestamps as wall-clock time. This also turns on verbose reporting.

-T, --trace
    Trace all called ioctls. Useful for debugging.

-h, --help
    Prints the help message.

-W, --exit-on-warn
    Exit this application when the first warning occurs instead of continuing.

-s, --skip-info
    Skip the Driver Info output section.

-C, --color <when>
    Highlight OK/warn/fail/FAIL strings with colors. OK is marked green, warn is marked bold, and fail/FAIL are marked bright red if enabled. <when> can be always, never, or auto (the default).

-N, --no-warnings
    Turn off warning messages.

-r, --remote <la>
    As initiator test the remote logical address <la> or all LAs if no LA was given.

-i, --interactive
    Interactive mode when doing remote tests.

-R, --reply-threshold <timeout>
    Warn if replies take longer than this threshold (default 1000ms).

-t, --timeout <secs>
    Set the standby/resume timeout to the given number of seconds. Default is 60s.

-A, --test-adapter
    Test the CEC adapter API

-F, --test-fuzzing
    Test the remote CEC adapter by randomly creating CEC messages. This runs forever until an error occurs.

--test-core
    Test the core functionality

--test-audio-rate-control
    Test the Audio Rate Control feature

--test-audio-return-channel-control
    Test the Audio Return Channel Control feature

--test-capability-discovery-and-control
    Test the Capability Discovery and Control feature

--test-deck-control
    Test the Deck Control feature

--test-device-menu-control
    Test the Device Menu Control feature

--test-device-osd-transfer
    Test the Device OSD Transfer feature

--test-dynamic-audio-lipsync
    Test the Dynamic Audio Lipsync feature

--test-osd-display
    Test the OSD Display feature

--test-one-touch-play
    Test the One Touch Play feature

--test-one-touch-record
    Test the One Touch Record feature

--test-power-status
    Test the Power Status feature

--test-remote-control-passthrough
    Test the Remote Control Passthrough feature

--test-routing-control
    Test the Routing Control feature

--test-system-audio-control
    Test the System Audio Control feature

--test-system-information
    Test the System Information feature

--test-timer-programming
    Test the Timer Programming feature

--test-tuner-control
    Test the Tuner Control feature

--test-vendor-specific-commands
    Test the Vendor Specific Commands feature

--test-standby-resume
    Test standby and resume functionality. This will activate testing of Standby, Give Device Power Status and One Touch Play.

EXIT STATUS
On success, it returns 0. Otherwise, it will return the error code.

EXAMPLE
We want to test the compliance of a TV when it is interacting with a Playback device. The device node of the CEC adapter which the TV is connected to is /dev/cec1.

The local CEC adapter first needs to be configured as a Playback device, and it must have an appropriate physical address. It is important that the physical address is correct, so as to not confuse the device under test. For example, if the CEC adapter is connected to the first input of the TV, the physical address 1.0.0.0 should generally be used.

    cec-ctl -d1 --playback --phys-addr 1.0.0.0

Most CEC adapters will automatically detect the physical address, and for those adapters the --phys-addr option is not needed.

Next, cec-follower also has to be started on the same device:

    cec-follower -d1

cec-compliance can now be run towards the TV by supplying the -r option with the logical address 0:

    cec-compliance -d1 -r0

BUGS
This manual page is a work in progress.

Bug reports or questions about this utility should be sent to the linux-media@vger.kernel.org mailinglist.

SEE ALSO
cec-follower(1), cec-ctl(1)