problem to understand behavior of I/O manager

From: R2 <gamiravi.d@xxxxxxxxx>
Date: Fri, 22 Feb 2008 01:58:12 -0800 (PST)

Hi All,
As one driver can communicate to other driver with the help this
data structure called IRP.(I/O request packets).

when user application perform any I/O request.I/O manager get
control and forms IRPs for that request . Here first of all I/O
manager calls file sytem driver then it calls for our appropriate
driver. Question is that what are the activities that are perform when
I/O manager calls for file system driver?

Thanks,
Ravi.
.

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