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PGET_DMA_DOMAIN callback function (wdm.h)
The PGET_DMA_DOMAIN callback function gets the handle to the DMA domain.
Syntax
PGET_DMA_DOMAIN PgetDmaDomain;
HANDLE PgetDmaDomain(
[in] PDMA_ADAPTER DmaAdapter
)
{...}
Parameters
[in] DmaAdapter
A pointer to a DMA_ADAPTER structure. This structure is the adapter object that represents the driver's bus-master DMA device or system DMA channel. The caller obtained this pointer from a previous call to the IoGetDmaAdapter routine.
Return value
Returns the HANDLE to the DMA domain.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10 |
| Header | wdm.h (include Wdm.h) |
| IRQL | PASSIVE_LEVEL |
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