Dell AIO UART Backlight driver

modulename: dell-uart-backlight.ko

configname: CONFIG_DELL_UART_BACKLIGHT

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>Dell X86 Platform Specific Device Drivers
└─>Serial device bus
└─>Dell AIO UART Backlight driver
In linux kernel since version 4.19.318 (release Date: 2024-07-18)  
Say Y here if you want to support Dell AIO UART backlight interface.
The Dell AIO machines released after 2017 come with a UART interface
to communicate with the backlight scalar board. This driver creates
a standard backlight interface and talks to the scalar board through
UART to adjust the AIO screen brightness.

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

source code: