Subject: Re: looking for devices on PCI bus [II]
To: Thor Lancelot Simon <>
From: Jason R Thorpe <>
List: tech-kern
Date: 05/03/2001 18:31:19
On Thu, May 03, 2001 at 09:12:47PM -0400, Thor Lancelot Simon wrote:

 > ...VIA makes at least two chipsets in which an AGP video controller (IOW,
 > a device on a *second* PCI bus) is integrated into the northbridge (which
 > is a device on the *first* PCI bus).  What if they changed the video frob
 > (as they've changed the IDE frob) but didn't change its own device ID?  The
 > situation is precisely analogous to what they did with their pciide, but
 > now there _is_ a second bus involved. :-(

You mis-understood.  They are on different "bus" numbers (e.g. bus #0,
bus #1, etc.), but they are in the *SAME* PCI heirarchy.

        -- Jason R. Thorpe <>