Sets bus-configuration data for a device on a PCI bus.

ULONG RtSetBusDataByOffset(
    BUS_DATA_TYPE BusDataType,
    ULONG BusNumber,
    ULONG SlotNumber,
    PVOID pBuffer,
    ULONG Offset,
    ULONG Length
);

Parameters

BusDataType

Type of bus data to set. Currently, its value can be only PCIConfiguration.

BusNumber

Zero-based number of the bus in the system.

SlotNumber

Logical slot number.

pBuffer

Pointer to a caller-supplied buffer that contains configuration data. Since currently only PCI configuration data can be obtained, the buffer contains all or part of the PCI_COMMON_CONFIG data type.

Offset

Offset in PCI_COMMON_CONFIG that indicates where to start writing.

Length

Number of bytes to write.

Remarks

Only PCI configuration data can be set.

Return Values

The number of bytes written to the device

Success.

ERROR_SUCCESS (zero)

Failure. For extended error information, see the Windows' GetLastError function

Requirements

Notes

• This function operates in the Windows portion of your application.
• The iwin32 API also includes an RtSetBusDataByOffset function that operates in the real-time portion of your application.

See Also

RtGetBusDataByOffset, RtTranslateBusAddress, iwin32x API, iwin32 Overview