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This function releases a set of map registers that were allocated during initialization with NdisMAllocateMapRegistersby a busmaster DMA NIC driver.
VOID NdisMFreeMapRegisters( IN NDIS_HANDLE MiniportAdapterHandle );
If it has already made a successful call to the NdisMAllocateMapRegistersfunction, the NIC driver of a busmaster DMA device calls this function if any of the following occurs:
As soon as it calls this function, the driver of a busmaster DMA NIC can no longer use the map registers that it previously allocated.
This function can be called only from an NIC driver's MiniportInitializeand MiniportHaltfunctions.
A driver that calls this function runs at IRQL PASSIVE_LEVEL.
|Runs on||Versions||Defined in||Include||Link to|
|Windows CE OS||2.0 and later||Ndis.h|
Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
Last updated on Tuesday, July 13, 2004