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From: gordon@osiris.cso.uiuc.edu (John Gordon)
Newsgroups: comp.lang.c
Subject: Re: Help: how to output to a port such as a RS232?
Message-ID: <1991Jun11.233106.6042@ux1.cso.uiuc.edu>
Date: 11 Jun 91 23:31:06 GMT
References: <1991Jun11.135431.22955@udecc.engr.udayton.edu>
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Organization: University of Illinois at Urbana
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jli@udecc.engr.udayton.edu (Staff-Jinghong _ Li) writes:

>Help needed:  would someone tell me how to send output
>to a port such as a RS232?  Any sepcial commands? 
>If the address of the port is known, hwo to declare 
>it as a FILE pointer? ...

	Well, if you are using Turbo C on a PC, there are some functions:
inport(), inportb(), outport(), outportb() (I think those are the names)
whose uses are to read and write from ports.


---
John Gordon
Internet: gordon@osiris.cso.uiuc.edu        #include <disclaimer.h>
          gordon@cerl.cecer.army.mil       #include <clever_saying.h>