KMDF Object Model Implementation

KMDF defines a larger set of objects than UMDF defines, because kernel-mode drivers have access to additional resources and can perform certain operations, such as handling interrupts, that user-mode drivers cannot perform. In addition to the object types that UMDF supports, KMDF also includes the following types of objects:

Collection

String

DPC

Timer

Interrupt

WMI

Lookaside list

Work item

Registry key

 

Several objects for DMA: DMA enabler, DMA transaction, and common buffer

Several objects for hardware resources: resource range list, resource list, and resource requirements list

KMDF does not support a named property store; instead, KMDF drivers manage persistent data by using registry key objects.

From the driver’s ...

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