WriteIo

The WriteIo method writes to the system and bus I/O memory.

HRESULT
  IDebugDataSpaces::WriteIo(
    IN ULONG  InterfaceType,
    IN ULONG  BusNumber,
    IN ULONG  AddressSpace,
    IN ULONG64  Offset,
    IN PVOID  Buffer,
    IN ULONG  BufferSize,
    OUT OPTIONAL PULONG  BytesWritten
    );

Parameters

InterfaceType

Specifies the interface type of the I/O bus. This parameter may take values in the INTERFACE_TYPE enumeration defined in wdm.h.

BusNumber

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

AddressSpace

Set to one.

Offset

Specifies the location of the requested data.

Buffer

Specifies the data to write to the I/O bus.

BufferSize

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

BytesWritten

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

Return Value

S_OK

The method was successful.

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

Interface Version

WriteIo is available in all versions of IDebugDataSpaces.

Comments

This method is only available in kernel-mode debugging.

Requirements

Headers: Defined in Dbgeng.h. Include Dbgeng.h.