ChromeOS EC CEC driver

modulename: cros-ec-cec.ko

configname: CONFIG_VIDEO_CROS_EC_CEC

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>CEC platform devices
└─>ChromeOS EC CEC driver
In linux kernel since version 4.2 (release Date: 2015-08-30)  
If you say yes here you will get support for the
ChromeOS Embedded Controller's CEC.
The CEC bus is present in the HDMI connector and enables communication
between compatible devices.

source code:
drivers/media/platform//cros-ec-cec/cros-ec-cec.c