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From: kraig@biostr.washington.edu (Kraig Eno)
Newsgroups: comp.sys.ibm.pc.misc,comp.os.msdos.programmer
Subject: I/O device drivers in C
Message-ID: <1991Apr3.151752.7306@biostr.washington.edu>
Date: 4 Apr 91 00:10:59 GMT
Organization: Univ. of Washington
Lines: 13

A friend of mine wants to do simple character I/O over the COM1 port from 
a Microsoft C program.  We had found an interrupt routine that would let 
us do it from Turbo Pascal, and it worked fine; it was written in assembly 
and did not use DOS calls (we want to do this right).  But the routine 
does not work properly with M-soft C.

Does anyone know of a PD or commercial library for doing serial I/O, or 
would anyone be willing to tell us how to go about it? We're stumped, and 
don't know enough about the M-soft C environment to debug these interrupt 
routines...please e-mail if you have any pointers.

Kraig Eno, kraig@biostr.washington.edu
"Problems generate new knowledge" - M. Usui