Re: LANANA: To Pending Device Number Registrants

Vojtech Pavlik
2001-05-16T14:57:40Z

On Wed, May 16, 2001 at 07:37:45AM -0700, Jonathan Lundell wrote:
> At 10:02 AM +0200 2001-05-16, Vojtech Pavlik wrote:
> > > It's also true that some buses simply don't yield up physical
> >> locations (ISA springs to mind,
> >
> >ISA is quite fine, you can use the i/o space as physical locations.
>
> I meant physical not as in physical-vs-virtual addresses (all ISA
> addresses, memory or IO, are physical in this sense, by the time they
> get to the bus). Rather, I meant that you can't determine which slot
> a given device is plugged into. If you have two NICs in two ISA
> slots, there's no way to distinguish between the slots. In practice,
> you'd have to experiment or remove a card and check the jumpering or
> some such.

Yes. But I meant that while this indeed is not possible, still the i/o
port address can be used instead of the slot number, because it at least
is physically jumpered and must be unique.

--
Vojtech Pavlik
SuSE Labs