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

一种基于 US B 2 ． 0接 口的 3 2路高速数据采集系统设计 -A Des i g n o f 3 2 Pa t h wa y F a s t Da t a Ac q ui s i t i o n Sy s t e m Ba s e d o n USB 2． 0 I n t er f a c e