KbdFilter_ServiceCallBack

NTDEV
1

hi,

I m very much confused about working of KbdFilter_ServiceCallBack routine,
In this routine i want to that how it handles Irp n make changes in it and den where it passes that Irp and how?

Thanks in advance.

–

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2

KbdFilter_ServiceCallback does not deal with PIRPs at all. It is called
directly by the port driver when there is data to report. The class
driver (kbdclass) which sits on top of your filter is the driver that
maintains a queue of pending read PIRPs that will be completed when
there is data to report, but your filter does not need to worry about
how kbdclass works. You just report the packets that you want to from
your filter service callback to the upper service routine.

d

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Vikky Kishra
Sent: Friday, December 30, 2005 3:55 AM
To: Windows System Software Devs Interest List
Subject: [ntdev] KbdFilter_ServiceCallBack

hi,

I m very much confused about working of KbdFilter_ServiceCallBack
routine,
In this routine i want to that how it handles Irp n make changes in it
and den where it passes that Irp and how?

Thanks in advance.

–

IndiaInfo Mail - the free e-mail service with a difference!
www.indiainfo.com
Check out our value-added Premium features, such as an extra 20MB for
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Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

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