Help on a texas instruments pci7420 cardbus

[Dominik Brodowski]

Hi,

On Wed, Sep 28, 2005 at 08:38:43PM +0200, Mårten Thomasson wrote:
> Out of curiosity, since I'm doing this to learn: what does the
> "assign-busses" parameter do?

Usually, on x86 the BIOS assigns numbers to the PCI buses. The PCI "root"
bus is 0, some have a bus which handles the video card, which is typically
numbered 1, and so on. A CardBus slot is just another PCI bus -- and it
needs a number too. Actually, it should have a number range: there might be
several buses added by a CardBus device.

Now, sometimes the BIOS gets it wrong -- it does not assign correct numbers
to the CardBus bridge. Then, the "assign-busses" paramter overrides the
BIOS'es decision and allocates the bus numbers on its own.

	Dominik