RE: How windows decides on device instance key name in case of Hardware

NTDEV
1

There is a logic to it, it is not documented. It is a pain in the ass
to try to decode.

Don Burn (MVP, Windows DKD)
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr

-----Original Message-----
From: santosh katvate [mailto:xxxxx@gmail.com]
Posted At: Monday, May 31, 2010 9:31 AM
Posted To: ntdev
Conversation: How windows decides on device instance key name in case
of
Hardware Key
Subject: How windows decides on device instance key name in case of
Hardware
Key

Hi

In below given regkey, Is the value for “P&PPP&P&PPP” decided by OS
randomly
or Is there any strict logic behind that?
Also is the naming based on system components installed on the
Motherboard.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_XYZ&DEV_XYZ&SUB
SYS_XY

Z&REV_A2\P&PPP&P&PPP

thanks
santosh k

Life is Small and Lots of Things to Learn Lets Share the Knowledge

__________ Information from ESET Smart Security, version of virus
signature
database 5158 (20100531) __________

The message was checked by ESET Smart Security.

http://www.eset.com

2

… and ‘opaque’ to the outside world meaning that the OS is free to change
how it does it from rev to rev. Not that it has changed. But we are
constantly reminded that “it might”.

Good Luck,
Dave Cattley

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Don Burn
Sent: Monday, May 31, 2010 9:33 AM
To: Windows System Software Devs Interest List
Subject: RE:[ntdev] How windows decides on device instance key name in case
of Hardware

There is a logic to it, it is not documented. It is a pain in the ass
to try to decode.

Don Burn (MVP, Windows DKD)
Windows Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr

-----Original Message-----
From: santosh katvate [mailto:xxxxx@gmail.com]
Posted At: Monday, May 31, 2010 9:31 AM
Posted To: ntdev
Conversation: How windows decides on device instance key name in case
of
Hardware Key
Subject: How windows decides on device instance key name in case of
Hardware
Key

Hi

In below given regkey, Is the value for “P&PPP&P&PPP” decided by OS
randomly
or Is there any strict logic behind that?
Also is the naming based on system components installed on the
Motherboard.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_XYZ&DEV_XYZ&SUB
SYS_XY

Z&REV_A2\P&PPP&P&PPP

thanks
santosh k

Life is Small and Lots of Things to Learn Lets Share the Knowledge

__________ Information from ESET Smart Security, version of virus
signature
database 5158 (20100531) __________

The message was checked by ESET Smart Security.

http://www.eset.com

NTDEV is sponsored by OSR

For our schedule of WDF, WDM, debugging and other seminars visit:
http://www.osr.com/seminars

To unsubscribe, visit the List Server section of OSR Online at
http://www.osronline.com/page.cfm?name=ListServer