On Mon, 2 Feb 2004 20:58:30 -0800 (PST)
SHAUN RIPLEY <vax3900@yahoo.com> wrote:

> I am going to debug my homebrew Q22 board (not built
> yet) under NetBSD/VAX. What I want to do is to read
> and write certain ports on my board. How do I do that?
Write a device driver or you can do some tests with the "d" and "e"
commands at the ">>>" prompt.

> Do I need to write driver?=20
If you want to use the card with NetBSD: Yes.

> Do I need to write assembler code?=20
No.

> Is it as simple as reading/writing ports under DOS?=20
No.

> Could somebody give me an example, or
> direction to such examples? Thank you.
Read my NetBSD Device Driver Writing Guide. It features the rf(4) driver
for the QBus (UniBus) RX02 floppy drive. See
http://www.unixag-kl.fh-kl.de/~jkunz/NetBSD/
--=20


tsch=FC=DF,
       Jochen

Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/