where is the Documentation

Hi ,
where can i find the documentation for the
function CTL_CODE.
i serched MSDN and DDK Docs but couldnt find it.


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Below is the Macro definition that is available in ntddk.h, devioctl.h,
wdm.h for W2K.
//
// Macro definition for defining IOCTL and FSCTL function control codes.
Note
// that function codes 0-2047 are reserved for Microsoft Corporation, and
// 2048-4095 are reserved for customers.
//

#define CTL_CODE( DeviceType, Function, Method, Access ) ( ((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method) )

Regards,
Prasanna.

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Rock Is Dead
Sent: Wednesday, June 20, 2001 1:19 PM
To: NT Developers Interest List
Subject: [ntdev] where is the Documentation

Hi ,
where can i find the documentation for the
function CTL_CODE.
i serched MSDN and DDK Docs but couldnt find it.


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It is found in the DDK DOcs
under Kernel mode Driver Architecture->Reference->System Defined I/O
Fucntion codes->IRP function codes and ioctls

-v.

[venky]-----Original Message-----
[venky]From: xxxxx@lists.osr.com
[venky][mailto:xxxxx@lists.osr.com]On Behalf Of Rock Is Dead
[venky]Sent: Wednesday, June 20, 2001 1:19 PM
[venky]To: NT Developers Interest List
[venky]Subject: [ntdev] where is the Documentation
[venky]
[venky]
[venky]Hi ,
[venky] where can i find the documentation for the
[venky] function CTL_CODE.
[venky] i serched MSDN and DDK Docs but couldnt find it.
[venky]
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