Re: Determining pci bus from irq

[Alan Cox]

On Maw, 2003-09-09 at 17:10, Adam Litke wrote:
> Is there a nice way to determine, given an irq number, the pci bus
> number that raised the interrupt?

In general the answer is you can't find out. PCI IRQ lines are shared.
You can certainly lock and walk the pci device list looking for matches
but you may get a lot of devices on different busses

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