How to get LowerDriver's name?

NTDEV
1

Hi all,

I have driverA loaded (e.g., aic78xx) , and driverB is upperfilter of driverA (e.g., MyDriver). Can driverB get the driverA’s name (in this case aic78xx)?
I dont think IoGetDeviceProperty can directly give you this, though.

Thanks

Peter

2

“Peter Trinh” wrote in message
news:xxxxx@ntdev…
>
> I have driverA loaded (e.g., aic78xx) , and driverB is upperfilter of
driverA (e.g., MyDriver). Can driverB get > the driverA’s name (in this
case aic78xx)?
>

How’s IOGetDeviceAttachmentBaseRef, followed by searching for the device
that points directly to your device object. Then it’s just a matter of:
DeviceObject->DriverObject->DriverName, then ObDeferenceObject?

Peter
OSR

3

> How’s IOGetDeviceAttachmentBaseRef

MN_QUERY_DEVICE_RELATIONS/TargetDeviceRelation is also helpful.

Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
xxxxx@storagecraft.com
http://www.storagecraft.com