ChromeOS Embedded Controller (UART)

modulename: cros_ec_uart.ko

configname: CONFIG_CROS_EC_UART

Linux Kernel Configuration
└─>Device Drivers
└─>Platform support for Chrome hardware
└─>Serial device bus
└─>ChromeOS Embedded Controller (UART)
In linux kernel since version 6.3 (release Date: 2023-04-23)  
If you say Y here, you get support for talking to the ChromeOS EC
through a UART, using a byte-level protocol.

To compile this driver as a module, choose M here: the
module will be called cros_ec_uart.

source code: