cec-client
Manage serial bus CEC connections. tldr-pages
On Linux
Linux
List all CEC adapters
cec-client --list-devicesIdentifyStart an interactive CEC session
sudo cec-clientIdentifySet the On-Screen Display name
sudo cec-client --osd-name nameIdentifySend a single command
echo on 0 | sudo cec-client --single-commandIdentifySet a device to standby in interactive mode
standby 0Turn a device on in interactive mode
on 0