Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!jarthur!ucivax!ucla-cs!lanai.cs.ucla.edu!waldorf
From: waldorf@lanai.cs.ucla.edu (Jerry Waldorf)
Newsgroups: comp.os.minix
Subject: Minix 1.2 printer problems.
Message-ID: <1991May16.065844.23218@cs.ucla.edu>
Date: 16 May 91 06:58:44 GMT
Sender: usenet@cs.ucla.edu (Mr. News Himself)
Organization: UCLA Computer Science Department
Lines: 21
Originator: waldorf@lanai.cs.ucla.edu
Nntp-Posting-Host: lanai.cs.ucla.edu

I have Minix 1.2 running on my PC 286 clone.  Everything seems to work
fine.  I am using the hard disk and have written a few changes into
the kernel for fun.  For example I added the P and V operators for
semaphores.  

But I cannot seem to get my printer to work with minix.  I have tryed
changing the value of the port_in call to ask if the printer is ready
in the printer.c kernel code.  But every time I get the same
Printer not on line , printer error message.  The printer works fine
when I run from DOS and it is a run o the mill CITIZEN 180D printer
that is plugged into the normal printer port.  The BOIS is called 
DTK 286 version 3.16 04/16/88.  I know very little about PC's and
there hardware, so I am not sure what to try next.  Any suggestions?

Also if someone knows about a good book on 286 PC hardware that could
explain some of the inner workings so that I could understand it
better I would be greatly appreciative.

Thanks for any help.

-- Jerry