Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

The Relationship Between Device Class And Driver

1 view
Skip to first unread message

Peter

unread,
Nov 26, 2009, 5:22:03 AM11/26/09
to
Hi,

I use the SRC "\src\general\toaster\bus" in the DDK to build a BusEnum
driver.
when I create a PDO with "Mass Storage Type" and "Disk Drive GUID" in this
driver,
then a unknown device appears in the system device manager, why it is not a
disk drive
in the device manager?
Then in the device manager, I choose "Update Driver" procedure for this
unknown
device, and assign it with disk class hardware, so it becomes to a disk
drive in the device
manager. What does "Update Driver" procedure do to make this unknown device
to
a disk device?

Best Regards,
Peter,


Maxim S. Shatskih

unread,
Nov 26, 2009, 2:40:08 PM11/26/09
to
Return a PnP ID of "GenDisk" for disk.sys to be loaded for your PDO.

--
Maxim S. Shatskih
Windows DDK MVP
ma...@storagecraft.com
http://www.storagecraft.com

"Peter" <pete...@vasstek.com.tw> wrote in message news:upxxRJob...@TK2MSFTNGP05.phx.gbl...

Mike [MSFT]

unread,
Dec 3, 2009, 10:34:16 PM12/3/09
to
The class displayed in Device Manager is the class of the 'Driver' installed
on the device. If there is no driver there will be no class associated.
The driver that gets selected will be based on matching one of the devices
PnP IDs with on in an INF.

-Mike

"Peter" <pete...@vasstek.com.tw> wrote in message
news:upxxRJob...@TK2MSFTNGP05.phx.gbl...

0 new messages