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  = 0,
  WdfMemoryDescriptorTypeBuffer   = 1,
  WdfMemoryDescriptorTypeMdl      = 2,
  WdfMemoryDescriptorTypeHandle   = 3
} 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

 

 

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