[comp.sys.ibm.pc.programmer] I/O programming

syau@aludra.usc.edu (Shu-Jye Syau) (03/27/91)

Hi :
    I am writing some I/O interface programs , need info .
    I need to read in digital datas from one predifined port , write to an
    opened file ..............(some actions)......... and write these data
    to another I/O port . Can someone tell where I can find such reference
    books or programs ? (in C language) . Thanks in advance !