From owner-freebsd-hackers  Wed Sep  3 14:49:39 1997
Return-Path: <owner-freebsd-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id OAA09966
          for hackers-outgoing; Wed, 3 Sep 1997 14:49:39 -0700 (PDT)
Received: from ocean.campus.luth.se (ocean.campus.luth.se [130.240.194.116])
          by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id OAA09955
          for <hackers@FreeBSD.ORG>; Wed, 3 Sep 1997 14:49:34 -0700 (PDT)
Received: (from karpen@localhost)
	by ocean.campus.luth.se (8.8.5/8.8.5) id XAA18864;
	Wed, 3 Sep 1997 23:38:13 +0200 (CEST)
From: Mikael Karpberg <karpen@ocean.campus.luth.se>
Message-Id: <199709032138.XAA18864@ocean.campus.luth.se>
Subject: Re: PnP support in userconfig
In-Reply-To: <199709030949.LAA07543@labinfo.iet.unipi.it> from Luigi Rizzo at "Sep 3, 97 11:49:52 am"
To: luigi@labinfo.iet.unipi.it (Luigi Rizzo)
Date: Wed, 3 Sep 1997 23:38:13 +0200 (CEST)
Cc: hackers@FreeBSD.ORG
X-Mailer: ELM [version 2.4ME+ PL31H (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-hackers@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

According to Luigi Rizzo:
[...]
> Before making the code available, I need suggestions on the following
> issues.
> 
> A PnP card can be specified using a unique integer (CSN) starting from
> 1 and assigned by the operating system at boot time, or with a 32-bit
> number which is the "vendor_id" for the board. Each card has a number
> of "logical devices" internally, numbered starting from 0 (the number
> is called LDN).
> 
> Each card can accept up to 8 port addresses, 4 memory addresses, 2 irq
> and 2 drq lines.
> 
> My code to support PnP in userconfig accepts commands with the
> following syntax:
> 
>     pnp 1 0 enable port0 0x534 irq0 7 irq1 5 drq0 3 drq1 4 ....
> 
> where the first two parameters identify the CSN and LDN of the card.
> I can replace the first parameter with the vendor_id so that the line
> would become something like:
> 
>     pnp 0x0100561e 0 enable port0 ...
> 
> with the advantage of making the same command work independently of
> the CSN assigned to the card, but with the disadvantage of a longer
> command and of making impossible to have two cards of the same type on
> the same machine (unless one adds another 32-bit integer, the serial
> number). I'd really go for the first option unless there are strong
> objections.

Well... How about making it possible to use both, just in case someone has
a problem with knowing the CSN of the card, and only has one card of that
kind. Something like:

pnp 1 0 enable port0 0x534 irq0 7 irq1 5 drq0 3 drq1 4 

OR

pnp v0x0100561e 0 enable port0 0x534 irq0 7 irq1 5 drq0 3 drq1 4

Where both are supported? Should be a simple case like:
if (*x == 'v') { vid } else { CSN }

The synatx above, or the one where you specify as many as you want after
the keyword shouldn't matter for this change, so that's irrelevant to this
question.

  /Mikael