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From: cale@lut.fi (Antti Kirmanen)
Newsgroups: comp.os.os2.programmer
Subject: OS/2 device drivers
Message-ID: <1991Apr09.151935.19325@lut.fi>
Date: 9 Apr 91 15:19:35 GMT
Organization: Lappeenranta University of Technology, Finland
Lines: 18


I'm currently trying to write a device driver for OS/2.
My problem is, that I should use inp and outp functions to
communicate with a port. OS/2 programmers reference manual
says, that I should use DosPortAccess() function call but then ...
Program crashes allways in the first outp() or inp() call.
I'm using Microsoft C 6.0 with OS/2 1.1

Can anyone help me. A simple example would be great.
Thanks in advance....

Please e-mail: cale@kannel.lut.fi

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