Re: Filter driver question

Kid <Kid@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

Can Vista use filter driver , any framework change ?

Do you mean WDM filter drivers? If so, then there is no change.

Does MSDN Library tell us much about filter driver ?

The WDK contains several good samples. The concept is just not that
complicated.

I have question about ComPort Inf section of msports.inf

[ComPort.NT.HW]
AddReg=ComPort.NT.HW.AddReg

[ComPort.NT.HW.AddReg]
HKR,,"UpperFilters",0x00010000,"serenum"

What does Inf HW section use for, and where will it create registry key ?

Devices use keys in (at least) three different parts of the registry: the
Services section, the software key in Control\Classes, and the hardware key
in Enum. The UpperFilters value happens to lives in the hardware key, and
the .NT.HW suffix is the way that you store a value there.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
.

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