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From: eagersh on 29 Mar 2010 12:44

> @eagersh
>
> > You could trace StartDevice Irp in your filter driver. Such Irp
> > contains PCI resources including mapped BAR's.
>
> -I think this is the way is supposed to be handled, but I had problems
> tracking down appropriate structure and fields.
> IRP_MN_START_DEVICE handler provides me with (PDEVICE_OBJECT
> DeviceObject, PIRP Irp).
> And then I am not sure what to do with them.
Look in WDM documentation on IRP_MN_START_DEVICE. You need to process
CM_RESOURCE_LIST. You could also look in WDM samples to see how
IRP_MN_START_DEVICE is processed. But again, it would not use this
method. Only in the case of the last chance.

Igor Sharovar



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