Serial mouse

modulename: sermouse.ko

configname: CONFIG_MOUSE_SERIAL

Linux Kernel Configuration
└─>Device Drivers
└─>Input device support
└─>Mouse
└─>Serial mouse
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here if you have a serial (RS-232, COM port) mouse connected
to your system. This includes Sun, MouseSystems, Microsoft,
Logitech and all other compatible serial mice.

If unsure, say N.

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

source code:
selects
CONFIG_SERIO