Specifying Device Type

NTFSD
1

I am trying to write a new file filter driver. Is there a list available for
device types used by third party vendors? I want to make sure that my type
does not conflict with an existing filter driver.

Thanks,
Naveen K Kohli

2

Specifying Device TypeNo, there is no registry for the types, why do you
care?

Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting

----- Original Message -----
From: Kohli, Naveen
To: File Systems Developers
Sent: Saturday, July 19, 2003 5:33 PM
Subject: [ntfsd] Specifying Device Type

I am trying to write a new file filter driver. Is there a list available for
device types used by third party vendors? I want to make sure that my type
does not conflict with an existing filter driver.
Thanks,
Naveen K Kohli

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3

Specifying Device TypeAre you asking about DeviceType parameter you pass to
IoCreateDevice?
This parameter has to be the same as the device type of the device your
filter is attaching to. For file system filters it is normally
FILE_DEVICE_DISK_FILE_SYSTEM.

Alexei.

“Kohli, Naveen” wrote in message
news:xxxxx@ntfsd…
I am trying to write a new file filter driver. Is there a list available for
device types used by third party vendors? I want to make sure that my type
does not conflict with an existing filter driver.
Thanks,
Naveen K Kohli

4

The DeviceType parameter is 0x1235(#define FILESPY_DEVICE_TYPE 0x1235)in
FileSpy sample.

Who Can describe 0x1235 in FileSpy sample?

Thanx!

Specifying Device TypeAre you asking about DeviceType parameter you pass to
IoCreateDevice?
This parameter has to be the same as the device type of the device your
filter is attaching to. For file system filters it is normally
FILE_DEVICE_DISK_FILE_SYSTEM.

Alexei.

“Kohli, Naveen” wrote in message
> news:xxxxx@ntfsd…
> I am trying to write a new file filter driver. Is there a list available for
> device types used by third party vendors? I want to make sure that my type
> does not conflict with an existing filter driver.
> Thanks,
> Naveen K Kohli