NdisZeroMappedMemory macro (ndis.h)
NdisZeroMappedMemory fills a block of memory that was mapped with a preceding call to NdisMMapIoSpace with zeros.
Syntax
void NdisZeroMappedMemory(
[in] Destination,
[in] Length
);
Parameters
[in] Destination
Specifies the base virtual address of a block of mapped memory.
[in] Length
Specifies the number of bytes to be filled with zeros.
Return value
None
Remarks
A miniport driver can call NdisZeroMappedMemory to zero-initialize mapped device memory. The given Destination and Length must be a proper subrange of the range specified when the driver called NdisMMapIoSpace.
NdisZeroMappedMemory is optimized, and a miniport driver can call this function any time that it needs to clear a mapped memory range.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Supported for NDIS 6.0 and NDIS 5.1 drivers (see NdisZeroMappedMemory (NDIS 5.1)) in Windows Vista. Supported for NDIS 5.1 drivers (see NdisZeroMappedMemory (NDIS 5.1)) in Windows XP. |
| Target Platform | Universal |
| Header | ndis.h (include Ndis.h) |
| IRQL | Any level |