This function copies data from device memory that was mapped during initialization with the NdisMMapIoSpace function to a system-space buffer.
Header file: | Ndis.h |
Windows CE versions: | 2.0 and later |
VOID NdisMoveFromMappedMemory( OUT PVOID Destination,
IN PVOID Source, IN ULONG Length );
An NIC driver calls this function to copy data from NIC memory into a buffer in the host, as, for example, when transferring received data into a protocol-supplied buffer or miniport-allocated staging buffer.
Both the Source and Destination pointers are virtual addresses. The virtual range specified by Source and Length must fall within a range of device memory that was mapped during initialization with the NdisMMapIoSpace function.
A driver that calls this function can run at any IRQL when the given Source and Destination are resident. Otherwise, callers must be running at IRQL < DISPATCH_LEVEL, as, for example if the Destination address is on the stack.
NdisAllocateMemory, NdisMMapIoSpace, NdisMoveMappedMemory, NdisMoveToMappedMemory