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Date:      Fri, 27 Jul 2001 20:27:40 +0200
From:      Wilko Bulte <wkb@freebie.xs4all.nl>
To:        "Brian F. Feldman" <green@FreeBSD.ORG>
Cc:        Warner Losh <imp@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject:   Re: cvs commit: src/sys/pccard pcic.c pcic_isa.c pcic_pci.c
Message-ID:  <20010727202740.A743@freebie.xs4all.nl>
In-Reply-To: <200107271746.f6RHkNX13641@green.bikeshed.org>; from green@FreeBSD.ORG on Fri, Jul 27, 2001 at 01:45:07PM -0400
References:  <imp@FreeBSD.org> <200107271746.f6RHkNX13641@green.bikeshed.org>

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On Fri, Jul 27, 2001 at 01:45:07PM -0400, Brian F. Feldman wrote:
> Warner Losh <imp@FreeBSD.org> wrote:
> > [...]
> >   hw.pcic.ignore_fuction_1 Ignores function 1 for all PCIC bridges by not
> >   			attaching to them.  Lucent released a huge batch
> >   			of cards that were imporperly manufactuered (lacking
> >   			the 0 ohm resister to disable slot 1).  This is
> >   			a big hammer to keep those cards from causing problems
> >   			(I've had 4 people contact me saying my patches
> >   			worked great once they added a kludge to always ignore
> >   			function 1, or until they soldered these resistors
> >   			in place!).
> > [...]
> 
> This, of course, begs the question... what exactly is a 0-ohm resistor 
> supposed to do?

A 0 ohm resistor is commonly used as a jumper. Manufacturing installed
jumper that is.

Wilko

[side note: if someone could really make 0 ohm resistors I am sure the power
companies would be very interested ;-) ]

-- 
|   / o / /  _   	Arnhem, The Netherlands    	email: wilko@FreeBSD.org
|/|/ / / /( (_) Bulte	

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