This module is common to all of the Example programs

It declares the {Open, Read, Write, Close} calls for the USB device

These user-calls are translated into OS system calls

This module also contains several support routines used by all of the examples-This module is common to all of the Example p rograms It declares the (Open, Read, Write, Close) calls for the USB device These user-call 's are translated into OS system calls This modul e also contains several support routines used b y all of the examples