Subject: Re: Dumping autoconf info from DDB
To: None <mouse@Rodents.Montreal.QC.CA>
From: Atsushi Furuta <firstname.lastname@example.org>
Date: 02/17/2000 21:33:39
From: der Mouse <mouse@Rodents.Montreal.QC.CA>
Date: Wed, 16 Feb 2000 11:49:42 -0500 (EST)
> > Strictly speaking, "files" file tree and configuration file
> > tree are not really trees. They are DAGs rather than
> > trees.
> I'm not sure what it is you're saying are DAGs, but it sounds as though
> you're talking about the device configuration tree. Well, this sure
> doesn't look very DAGlike to me:
> ## SBus expander box
> xbox* at sbus? slot ? offset ?
> sbus* at xbox?
Thank you for your explanation. Now I understand what I mistake. It
is not acyclic at all.
I find our configuration file example has:
pci* at pchb? bus ?
pchb* at pci? dev ? func ? # PCI-Host bridges
It has just a same structure and our implementation tested with this
example file, so I expect the implementation is not assume it is
> The tree of devices actually located during autoconf, that's a DAG -
> but it's a tree, so presumably that's not what you're talking about.
Yes. I was talking about parent-child relation in configuration file
such as "GENERIC", but not about the tree of devices.