Direct Memory Access Abstraction PDD Structures (Windows Embedded CE 6.0)
1/6/2010
The following table shows the Direct Memory Access (DMA) abstraction platform dependent driver (PDD) structures.
| Programming element | Description |
|---|---|
This structure is used by the model device driver (MDD) to call PDD functions that can be used to update the DMA information and to initialize the DMA adapter hardware. |
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This structure provides the DMA channel service and is returned by the PDD function LPAllocateChannel. |
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This structure is optional. If the PDD does not support it, then either NULL is returned when LPCreateDmaPDDTransfer is called or the function LPCreateDmaPDDTransfer is not implemented. |