Hi,
I have win32 app and PS/2 keyboard filter driver. I can successfully
pass IOCTL from the app to the driver. I can see that IOCTL inside
my IRP_MJ_DEVICE_CONTROL function and can also set global flags.
I followed the microsoft article "How To Send IOCTLs to a Filter Driver"
using the following code in my AddDevice.

status = IoCreateDevice( Driver,
sizeof(DEVICE_EXTENSION),
&ntDeviceName,
FILE_DEVICE_UNKNOWN,
FILE_DEVICE_SECURE_OPEN,
FALSE,
&ControlDeviceObject);

In routine IRP_MJ_DEVICE_CONTROL the device object I get is not the real one
but my control object. I need to call another routine with my real device
object.
How can i do it? How can i put real device object into control object's
device extension ?

Will appreciate your kind suggestions.Thanks.

-Robert

Take a look at the src\general\toaster\filter sample in the Server 2003 SP1
DDK. It shows how to do this.

--
--
-Eliyas
This posting is provided "AS IS" with no warranties, and confers no rights.
http://www.microsoft.com/whdc/driver/default.mspx
http://www.microsoft.com/whdc/driver/kernel/KB-drv.mspx