How to raise IOCTL

NTDEV
1

Hi,

Can anyone tell me how one can raise user defined IOCTL from a device
driver. Any sample code/project/article would be immensely helpful.

Thanks in advance,
Amar.

2

If you have MSDN or NTDDK documentation, Go thru. documentation of
Win SDK function "DeviceIoControl".

Saks

-----Original Message-----
From: Amar Kumar [mailto:xxxxx@extentia.com]
Sent: Wednesday, February 05, 2003 7:52 AM
To: NT Developers Interest List
Subject: [ntdev] How to raise IOCTL
Importance: High

Hi,

Can anyone tell me how one can raise user defined IOCTL from a device driver. Any sample code/project/article would be immensely helpful.

Thanks in advance,
Amar.

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To unsubscribe send a blank email to xxxxx@lists.osr.com

3

These are called internal ioctls (IRP_MJ_INTERNAL_DEVICE_CONTROL) and can be raised by allocating Irp, filling coresponding fields and passing the irp to the target driver using IoCallDriver.
----- Original Message -----
From: Amar Kumar
To: NT Developers Interest List
Sent: Wednesday, February 05, 2003 1:22 PM
Subject: [ntdev] How to raise IOCTL

Hi,

Can anyone tell me how one can raise user defined IOCTL from a device driver. Any sample code/project/article would be immensely helpful.

Thanks in advance,
Amar.

You are currently subscribed to ntdev as: xxxxx@sasken.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

4

Hi,

Actually I want to raise IOCTL in order to communicate between my kernel
level driver and User mode driver (in both direction). Can I use
"DeviceIoControl" function for the above stated requirement of mine.

Thanks,

  • Amar.

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Saket Bhide
Sent: Wednesday, February 05, 2003 1:38 PM
To: NT Developers Interest List
Subject: [ntdev] RE: How to raise IOCTL

If you have MSDN or NTDDK documentation, Go thru. documentation of
Win SDK function "DeviceIoControl".

Saks
-----Original Message-----
From: Amar Kumar [mailto:xxxxx@extentia.com]
Sent: Wednesday, February 05, 2003 7:52 AM
To: NT Developers Interest List
Subject: [ntdev] How to raise IOCTL
Importance: High

Hi,

Can anyone tell me how one can raise user defined IOCTL from a device
driver. Any sample code/project/article would be immensely helpful.

Thanks in advance,
Amar.

You are currently subscribed to ntdev as: xxxxx@zensar.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

You are currently subscribed to ntdev as: xxxxx@extentia.com
To unsubscribe send a blank email to xxxxx@lists.osr.com

5

Not directly. Send an IOCTL from your app to the driver and pend it. When
you want to notify the app, complete the IOCTL. Search this archive, it's
been discussed many times.

Phil

Philip D. Barila
Seagate Technology, LLC
(720) 684-1842
As if I need to say it: Not speaking for Seagate.

"Amar Kumar" wrote in message news:xxxxx@ntdev...
Hi,

Actually I want to raise IOCTL in order to communicate between my kernel
level driver and User mode driver (in both direction). Can I use
"DeviceIoControl" function for the above stated requirement of mine.

Thanks,
- Amar.

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Saket Bhide
Sent: Wednesday, February 05, 2003 1:38 PM
To: NT Developers Interest List
Subject: [ntdev] RE: How to raise IOCTL

If you have MSDN or NTDDK documentation, Go thru. documentation of
Win SDK function "DeviceIoControl".

Saks
-----Original Message-----
From: Amar Kumar [mailto:xxxxx@extentia.com]
Sent: Wednesday, February 05, 2003 7:52 AM
To: NT Developers Interest List
Subject: [ntdev] How to raise IOCTL
Importance: High

Hi,

Can anyone tell me how one can raise user defined IOCTL from a device
driver. Any sample code/project/article would be immensely helpful.

Thanks in advance,
Amar.
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