IDebugDataSpaces3::WriteBusData method (dbgeng.h)

Article
02/22/2024

The WriteBusData method writes data to a system bus.

Syntax

HRESULT WriteBusData(
  [in]            ULONG  BusDataType,
  [in]            ULONG  BusNumber,
  [in]            ULONG  SlotNumber,
  [in]            ULONG  Offset,
  [in]            PVOID  Buffer,
  [in]            ULONG  BufferSize,
  [out, optional] PULONG BytesWritten
);

Parameters

[in] BusDataType

Specifies the bus data type of the bus to write to. For details of allowed values see the documentation for the BUS_DATA_TYPE enumeration in the Microsoft Windows SDK.

[in] BusNumber

Specifies the system-assigned number of the bus. This is usually zero, unless the system has more than one bus of the same bus data type.

[in] SlotNumber

Specifies the logical slot number on the bus.

[in] Offset

Specifies the offset in the bus data to start writing to.

[in] Buffer

Specifies the data to write to the bus.

[in] BufferSize

Specifies the size in bytes of the buffer Buffer. This is the maximum number of bytes that will be written.

[out, optional] BytesWritten

Receives the number of bytes written to the bus. If BytesWritten is NULL, this information is not returned.

Return value

This method can also return error values. See Return Values for more details.

Return code	Description
S_OK	The method was successful.

Remarks

This method is only available in kernel-mode debugging.

The nature of the data read from the bus is system, bus, and slot dependent.

Requirements

Requirement	Value
Target Platform	Desktop
Header	dbgeng.h (include Dbgeng.h)

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