Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!ukma!brian
From: brian@ms.uky.edu (Brian Sturgill)
Newsgroups: comp.unix.ultrix
Subject: Re: How to write an Ultrix device driver
Message-ID: <11371@s.ms.uky.edu>
Date: 30 Mar 89 22:06:28 GMT
References: <88434@felix.UUCP> <6423@cbmvax.UUCP>
Organization: U of Ky, Math. Sciences, Lexington KY
Lines: 32



In article <6423@cbmvax.UUCP>, grr@cbmvax.UUCP (George Robbins) writes:
> In article <88434@felix.UUCP> mbr@aoa.UUCP (Mark Rosenthal) writes:
> > Reply-to: mbr@aoa.UUCP (Mark Rosenthal)
> > 
> > I need to write a device driver to work with Ultrix.
> > We are a binary only site.
> > 
> 
> Ultrix device drivers (as of 2.2) seem to still be basically 4.2 BSD
> drivers. ...

There is one major difference that I know of, here is a message that
was sent to me when I had similar troubles.  I know that the message
is correct as we put some of our own drivers in here.
Alas, I don't remember the source of this information to give proper
credit.

* I am told that you will need to remove the "register br, cvec"
* lines from configuration probe routines for these drivers and
* the ones in contrib/ to work under Ultrix 2.0.

The purpose of removing "register br, cvec" is that they are now global
  variables (probably improves efficiency).

Brian
-----------
           Brian Sturgill          System Manager
   University of Kentucky Departments of Mathematical Sciences
        brian@ms.uky.edu                brian@ms.uky.csnet
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