rpi22:~ # cec-ctl --help
Usage:
  -d, --device <dev>       Use device <dev> instead of /dev/cec0
                           If <dev> starts with a digit, then /dev/cec<dev> is used.
  -D, --driver <driver>    Use a cec device with this driver name
  -a, --adapter <adapter>  Use a cec device with this adapter name
  -p, --phys-addr <addr>   Use this physical address
  -o, --osd-name <name>    Use this OSD name
  -V, --vendor-id <id>     Use this vendor ID
  -l, --logical-address    Show first configured logical address
  -L, --logical-addresses  Show all configured logical addresses
  -C, --clear              Clear all logical addresses
  -n, --no-reply           Toggle 'don't wait for a reply'
  -N, --non-blocking       Transmit messages in non-blocking mode
  -t, --to <la>            Send message to the given logical address
  -f, --from <la>          Send message from the given logical address
                           By default use the first assigned logical address
  -r, --show-raw           Show the raw CEC message (hex values)
  -s, --skip-info          Skip Driver Info output
  -S, --show-topology      Show the CEC topology
  -P, --poll               Send poll message
  -h, --help               Display this help message
  --help-all               Show all help messages
  -T, --trace              Trace all called ioctls
  -v, --verbose            Turn on verbose reporting
  -w, --wall-clock         Show timestamps as wall-clock time (implies -v)
  -W, --wait-for-msgs      Wait for messages and events for up to --monitor-time secs.
  --cec-version-1.4        Use CEC Version 1.4 instead of 2.0
  --allow-unreg-fallback   Allow fallback to Unregistered
  --no-rc-passthrough      Disable the RC passthrough
  --reply-to-followers     The reply will be sent to followers as well
  --raw-msg                Transmit the message without validating it (must be root)
  --timeout <ms>           Set the reply timeout in milliseconds (default is 1000 ms)
  --list-ui-commands       List all UI commands that can be used with --user-control-pressed
  --list-devices           List all cec devices

  --tv                     This is a TV
  --record                 This is a recording and playback device
  --tuner                  This is a tuner device
  --playback               This is a playback device
  --audio                  This is an audio system device
  --processor              This is a processor device
  --switch                 This is a pure CEC switch
  --cdc-only               This is a CDC-only device
  --unregistered           This is an unregistered device

  --feat-record-tv-screen  Signal the Record TV Screen feature
  --feat-set-osd-string    Signal the Set OSD String feature
  --feat-deck-control      Signal the Deck Control feature
  --feat-set-audio-rate    Signal the Set Audio Rate feature
  --feat-sink-has-arc-tx   Signal the sink ARC Tx feature
  --feat-source-has-arc-rx Signal the source ARC Rx feature

  --rc-tv-profile-1        Signal RC TV Profile 1
  --rc-tv-profile-2        Signal RC TV Profile 2
  --rc-tv-profile-3        Signal RC TV Profile 3
  --rc-tv-profile-4        Signal RC TV Profile 4

  --rc-src-dev-root        Signal that the RC source has a Dev Root Menu
  --rc-src-dev-setup       Signal that the RC source has a Dev Setup Menu
  --rc-src-contents        Signal that the RC source has a Contents Menu
  --rc-src-media-top       Signal that the RC source has a Media Top Menu
  --rc-src-media-context   Signal that the RC source has a Media Context Menu

  -m, --monitor            Monitor CEC traffic
  -M, --monitor-all        Monitor all CEC traffic
  --monitor-pin            Monitor low-level CEC pin
  --monitor-time <secs>    Monitor for <secs> seconds (default is forever)
  --ignore <la>,<opcode>   Ignore messages from logical address <la> and opcode
                           <opcode> when monitoring. 'all' can be used for <la>
                           or <opcode> to match all logical addresses or opcodes.
                           To ignore poll messages use 'poll' as <opcode>.
  --store-pin <to>         Store the low-level CEC pin changes to the file <to>.
                           Use - for stdout.
  --analyze-pin <from>     Analyze the low-level CEC pin changes from the file <from>.
                           Use - for stdin.
  --test-power-cycle       Test power cycle behavior of the display.
  --stress-test-power-cycle cnt=<count>[,max-sleep=<secs>]
                           Power cycle display <count> times. If 0, then never stop.
                           If <secs> is non-zero (0 is the default), then sleep for
                           a random number of seconds between 0 and <secs> before
                           each Standby or Image View On message.

  --help-abort                        Show help for the Abort feature
  --help-audio-rate-control           Show help for the Audio Rate Control feature
  --help-audio-return-channel-control Show help for the Audio Return Channel Control feature
  --help-capability-discovery-and-control Show help for the Capability Discovery and Control feature
  --help-deck-control                 Show help for the Deck Control feature
  --help-device-menu-control          Show help for the Device Menu Control feature
  --help-device-osd-transfer          Show help for the Device OSD Transfer feature
  --help-dynamic-audio-lipsync        Show help for the Dynamic Audio Lipsync feature
  --help-htng                         Show help for the HTNG feature
  --help-osd-display                  Show help for the OSD Display feature
  --help-one-touch-play               Show help for the One Touch Play feature
  --help-one-touch-record             Show help for the One Touch Record feature
  --help-power-status                 Show help for the Power Status feature
  --help-remote-control-passthrough   Show help for the Remote Control Passthrough feature
  --help-routing-control              Show help for the Routing Control feature
  --help-standby                      Show help for the Standby feature
  --help-system-audio-control         Show help for the System Audio Control feature
  --help-system-information           Show help for the System Information feature
  --help-timer-programming            Show help for the Timer Programming feature
  --help-tuner-control                Show help for the Tuner Control feature
  --help-vendor-specific-commands     Show help for the Vendor Specific Commands feature

  --custom-command cmd=<byte>[,payload=<byte>[:<byte>]*]
                                      Send custom message