Re: PATCH: New fix for CardBus bridge behind a PCI bridge

["H. J. Lu" <hjl@lucon.org>]

On Fri, Aug 16, 2002 at 07:48:25PM +0400, Ivan Kokshaysky wrote:
> On Mon, Aug 12, 2002 at 08:29:42PM -0700, H. J. Lu wrote:
> > I was told all PCI_CLASS_BRIDGE_PCI bridges were transparent. The non-
> > transparent ones have class code PCI_CLASS_BRIDGE_OTHER. This new patch
> > only checks PCI_CLASS_BRIDGE_PCI and works for me.
> 
> I guess that info came from Intel ;-)  Interesting, but completely wrong.
> The devices they call "non-transparent PCI-to-PCI bridges" aren't classic
> PCI-to-PCI bridges at all, that's why they are PCI_CLASS_BRIDGE_OTHER.
> It's more to do with CPU-to-CPU bridges.
> In our terms, "transparent" PCI-to-PCI bridge means subtractive decoding one.
> Your previous patch makes much more sense, although a) it should belong to
> generic pci code b) is way incomplete.
> 
> Please try this one instead.
> 

CardBus works now. But I can no longer load usb-uhci. My X server no
longer works. Your patch is not right.


H.J.