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Re: new acpi utility functions
On Mon, Nov 30, 2009 at 08:10:10AM +0100, Christoph Egger wrote:
> The purpose is to link ACPI and PCI drivers together in a general way
> not just for power management.
Yes, I was aware of that. Perhaps what I was really saying is that nice
work, this is much needed.
117 + /*
118 + * ACPI spec: "The _BBN object is located under a
119 + * PCI host bridge and must be unique for every
120 + * host bridge within a segment since it is the PCI bus number."
121 + */
122 + rv = acpi_eval_integer(ad->ad_handle, "_BBN", &bus);
123 + if (ACPI_FAILURE(rv))
124 + return false;
Not that important, but I wonder if it is possible to alternatively obtain
the bus number via the resources returned in _CRS? If so, it could be tried
before bailing out.
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