Matthew Wilcox <matthew <at> wil.cx> writes:
>
> On Sat, May 02, 2009 at 11:15:52AM +0000, Lifesaver wrote:
> > Matthew Wilcox <matthew <at> wil.cx> writes:
> >
> > > Try adding:
> > > printk("slot number : %x", PCI_SLOT(bus->self->devfn));
> >
> > I actually tried this already, bus->self is zero as well,
> > and de-referencing it crashes the driver..
>
> You need to be one level down ... stop before you reach bus->self == NULL.
>
I am stopping before bus becomes null. which is why bus is not null, but
bus->self is. I will try your suggestion tomorrow - stopping one level
earlier.
> I might be able to give a better answer if I understood what you were
> trying to do here. Are you looking for something that matches the slot
> number on the back of the machine? Are you trying to determine whether
> two devices are on the same plugin card? Something else?
>
Yes I am trying to programatically find the slot position on the back by
looking at pci_dev structure of a device on the card (there are upto 4 such
devices on one board)
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
