NdisWritePciSlotInformation

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This function writes a specified number of bytes to the PCI configuration space for a network adapter on the PCI bus.

ULONG NdisWritePciSlotInformation(
IN NDIS_HANDLE
NdisAdapterHandle
,
IN ULONG
SlotNumber
,
IN ULONG
Offset
,
IN PVOID
Buffer
,
IN ULONG

Length
);

Parameters

NdisAdapterHandle

Specifies the MiniportAdapterHandlepassed in to the MiniportInitializefunction and to most other Miniport XXXfunctions.

SlotNumber

Specifies the slot number of the network adapter on the I/O bus.

Offset

Specifies the byte offset within the PCI configuration space at which to begin transferring the caller-supplied configuration information.

Buffer

Pointer to a caller-allocated buffer containing the PCI configuration information to be written.

Length

Specifies the size, in bytes, of the buffer at Bufferand, therefore, how many bytes of PCI configuration information to write.

Return Values

Returns how many bytes of caller-supplied data it wrote.

Remarks

This function writes PCI configuration information for a network adapter. However, drivers of network adapters on PCI buses call the NdisImmediateReadPciSlotInformation, NdisReadPciSlotInformation, or NdisMPciAssignResourcesfunction far more frequently than this function.

When a network adapter driver finds its device on a PCI bus with the Ndis(Immediate)ReadPciSlotInformationfunction or by retrieving information from the \ DriverName\Parameterskey in the registry, that driver can call NdisMPciAssignResourcesto determine the bus-relative configuration parameters to use in subsequent calls to other NDIS configuration functions. If NdisMPciAssignResourcesreturns values that require the driver to reconfigure its device on the bus, it can call this function.

This function transfers the same type of bus-relative PCI configuration information as the NdisImmediateWritePciSlotInformationfunction. However, callers of this function pass the MiniportAdapterHandlepassed in to the MiniportInitializefunction, rather than the WrapperConfigurationContexthandle.

The caller is responsible for releasing the memory at Bufferwhen this function returns control.

Requirements

Runs on	Versions	Defined in	Include	Link to
Windows CE OS	2.0 and later	Ndis.h		Ndislib.lib

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.