This package provides the driver for mouse input devices. It is mainly used on non-Linux operating systems such as BSD and Solaris. Most configurations on Linux will use evdev, the kernel's event delivery mechanism, and do not need this package.
See the inputattach package if your mouse is not automatically detected by the Linux kernel, for example because it is a serial mouse.
More information about X.Org can be found at:
This package is built from the X.org xf86-input-mouse driver module.