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References: <xzp4qqn6n9v.fsf@dwp.des.no> <20040512010240.GD601@funkthat.com>
From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
Date: Wed, 12 May 2004 15:26:57 +0200
In-Reply-To: <20040512010240.GD601@funkthat.com> (John-Mark Gurney's message
 of "Tue, 11 May 2004 18:02:40 -0700")
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cc: dfr@freebsd.org
Subject: Re: newbus flaw
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John-Mark Gurney <gurney_j@efn.org> writes:
> You are incorrect in assuming you can't find out if another child already
> exists.. Usually this is a problem of properly allocating resources so
> that you know the other child exists.  Since you are using identify, you
> already don't have a "self describing" bus, which means that you have
> to either use hints, or another method to make sure that your device
> doesn't already exist.

It's not quite that simple.  See the block comment at the top of
src/sys/dev/ichwd/ichwd.c for an explanation.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no