This is a serial mouse driver, which is compliant with Plug and Play, supports dynamic detection (via serenum) and removal (either hotplug or via the device manager). The code serves as a sample for any serial-enumerable device. The behavior of the various routines is documented in the source code files.
This structure defines the interface between the low-level tty driver and the tty routines. The following routines can be defined unless noted otherwise, they are optional, and can be filled in with a null pointer.
