Re: Can filter driver ignore an AddDevice?

Just return STATUS_SUCCESS but do not attach to the device stack. If you
return a failure code the whole device stack will be torn down.


--
Don Burn (MVP, Windows DKD)
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr
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"Ilya Konstantinov" <> wrote in message
news:a26c0832-07ce-4550-af9a-...
> Hello,
> I have a question.
>
> If my filter driver elects not to filter a certain PDO (e.g. it
> retrieves some PDO property through IoGetDeviceProperty and figures
> out the device should not be filtered), what should it do?
> 1) Return STATUS_UNSUCCESSFUL, or
> 2) Simply return STATUS_SUCCESSFUL before doing any IoCreateDevice
>
> And anyway, is it legit to call IoGetDeviceProperty on the
> PhysicalDeviceObject at this point?
>
> Thanks.
>
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