newbus flaw

Dag-Erling Smørgrav des at des.no
Wed May 12 06:27:06 PDT 2004


John-Mark Gurney <gurney_j at 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
-- 
Dag-Erling Smørgrav - des at des.no


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