I think you are indicating that you have control over the design and
implementation of both the function and the upper filter driver.
A) You could use IOCTLs sent from the filter to the function driver to
obtain the information you need.
B) Implement a device interface. This was discussed here last week.
=====================
Mark Roddy
-----Original Message-----
From: xxxxx@mcdi.com [mailto:xxxxx@mcdi.com]
Sent: Tuesday, September 16, 2003 5:20 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] Filter driver : Access to Function and
Physical Device ObjectHello,
I have a big problem. I have written an upper filter driver
and i am not able to retrieve some parameters from the device
extension FDO.In addition, I create one PDO from the function device driver
FDO and i save one parameter into this device extension PDO.
Also, i need to retrieve this parameter from the upper filter driver.How could I access to these parameters (Device Extension FDO
and PDO) from my upper filter driver.Best regards
Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256
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