Hello,
I am trying to write a PCI bus filter driver that would allow me
to reallocate PCI configuration space for PCMCIA controllers by
handling IRP_MN_QUERY_RESOURCE_REQUIREMENTS on the way back up the
stack (yes, I’m SURE I want to do this :)). I believe I’m having a problem
getting my filter driver loading properly, however, because I’m only
receiving a limited amount of IRPs. I would expect to be seeing a plethora
of IRPs, as opposed to less than 10. Using Walter Oney’s DevView program,
I can see that my driver loads in the following manner:
PDO FDO
pci.sys mydriver.sys
So I *think* I’m modifying the registry correctly to get my filter
driver loaded. But I’m confused as to why I’m not getting more IRPs.
If anybody has any suggestions on what I may be doing wrong or on
writing a bus filter driver in general, I’d love to hear them.
Thanks a bundle,
Carl.
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