LPIsPhysAddrSupported (Windows Embedded CE 6.0)
1/6/2010
This function checks whether the physical address specified for a Direct Memory Access (DMA) transfer is usable.
Syntax
typedef BOOL (* LPIsPhysAddrSupported)(
PDMA_PDD_ADAPTER_CONTEXT lpPddAdapterContext,
PHYSICAL_ADDRESS BufferPhysAddress,
DWORD dwLength
);
Parameters
- lpPddAdapterContext
[in] Pointer to a DMA_PDD_ADAPTER_CONTEXT structure.
- BufferPhysAddress
[in] DMA buffer block physical address.
- dwLength
[in] Length in bytes of BufferPhysAddress.
Return Value
Returns TRUE if the physical address can be used for DMA. Returns FALSE if the physical address can not be used for DMA.
Requirements
| Header | dmamif.h |
| Windows Embedded CE | Windows Embedded CE 6.0 and later |