_WDF_MEMORY_DESCRIPTOR_TYPE Enumeration

[Applies to KMDF and UMDF]

The WDF_MEMORY_DESCRIPTOR_TYPE enumeration identifies the types of memory descriptions that a WDF_MEMORY_DESCRIPTOR structure can specify.

Syntax

typedef enum _WDF_MEMORY_DESCRIPTOR_TYPE {
  WdfMemoryDescriptorTypeInvalid  ,
  WdfMemoryDescriptorTypeBuffer   ,
  WdfMemoryDescriptorTypeMdl      ,
  WdfMemoryDescriptorTypeHandle
} WDF_MEMORY_DESCRIPTOR_TYPE;

Constants

WdfMemoryDescriptorTypeInvalid Reserved for internal use only.
WdfMemoryDescriptorTypeBuffer The WDF_MEMORY_DESCRIPTOR structure contains a buffer description.
WdfMemoryDescriptorTypeMdl The WDF_MEMORY_DESCRIPTOR structure contains a memory descriptor list (MDL).
WdfMemoryDescriptorTypeHandle The WDF_MEMORY_DESCRIPTOR structure contains a handle to a memory object.

Requirements

   
Minimum KMDF version 1.0
Minimum UMDF version 2.0
Header wdfmemory.h (include Wdf.h)

See Also

WDF_MEMORY_DESCRIPTOR