Re: how does macro to get base address register in configuration space works

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On Mon, Nov 22, 2010 at 10:02, Bond <jamesbond.2k.g@xxxxxxxxx> wrote:
> I am trying to understand working of pci_resource_start function
> So I browsed code via cscope and searched for string pci_resource_start
> and got following in pci.h
>
>  #define pci_resource_start(dev, bar)    ((dev)->resource[(bar)].start)

AFAIK, for example dev is "foo", bar is "bar", then
pci_resource_start(foo,bar) becomes:
foo->resource[bar].start

Seems like calling a function of field, which in turns is coming from
a pointer, no?
-- 
regards,

Mulyadi Santosa
Freelance Linux trainer and consultant

blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com

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