Events

NTFSD
1

Hello,

I am writing a filter driver on windows 2k. I want to notify the user mode
application when some thing interested for me happened in my driver.
I have achieved this by creating an Event and this works fine.
Now my problem is, Whenever user mode application is processing an event
I want the my driver to wait. for this I have created another Event and
called “KeWaitForSingleObject”. But this is not working.

What is wrong here?. What is the best method for doing 2 way communication
between user mode application and filter drivers.

Please let me know If you need some more information regarding this.

Thanks
rajesh

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2

That’s the way I do it and it works.

-----Mensaje original-----
De: rajesh [mailto:xxxxx@net-fast.com]
Enviado el: lunes, 28 de enero de 2002 17:33
Para: File Systems Developers
Asunto: [ntfsd] Events

Hello,

I am writing a filter driver on windows 2k. I want to notify the user
mode
application when some thing interested for me happened in my driver.
I have achieved this by creating an Event and this works fine.
Now my problem is, Whenever user mode application is processing an event
I want the my driver to wait. for this I have created another Event and
called “KeWaitForSingleObject”. But this is not working.

What is wrong here?. What is the best method for doing 2 way
communication
between user mode application and filter drivers.

Please let me know If you need some more information regarding this.

Thanks
rajesh

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3

hi,

I think the approach is correct, but you should make sure that you are that
the functions are called at appropriate IRQLs, the parameter constraints
etc.

Regards.

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