Say Y here if you have any input device (mouse, keyboard, tablet,
joystick, steering wheel ...) connected to your system and want
it to be available to applications. This includes standard PS/2
keyboard and mouse.

Say N here if you have a headless (no monitor, no keyboard) system.

More information is available: <file:Documentation/input/input.rst>

If unsure, say Y.

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

source code:

drivers/input/