How to write an Ultrix device driver

[Brian Sturgill]

In article <6423 at cbmvax.UUCP>, grr at cbmvax.UUCP (George Robbins) writes:
> In article <88434 at felix.UUCP> mbr at aoa.UUCP (Mark Rosenthal) writes:
> > Reply-to: mbr at 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 at ms.uky.edu                brian at ms.uky.csnet
        {uunet,rutgers}!ukma!brian       brian at UKMA.BITNET