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This NDIS DeviceIoControl request is used to retrieve data logged by a miniport driver. A miniport creates a log file by calling NdisMCreateLog, and subsequently logs data to it by calling NdisMWriteLogData. This DeviceIoControl will block until data is available.


  • lpInBuffer
    Pointer to a wide character, null terminated string that is the name of the adapter whose log is to be read.
  • nInBufferSize
    Size in bytes of the lpInBuffer string, including the null terminator.
  • lpOutBuffer
    Pointer to a buffer to receive the retrieved log data.
  • nOutBufferSize
    Size in bytes of the lpOutBuffer string.
  • lpBytesReturned
    Pointer to DWORD in which to store the number of bytes read from the log.


OS Versions: Windows CE .NET 4.0 and later.
Header: Ntddndis.h.

See Also

DeviceIoControl | NdisMCreateLog | NdisMWriteLogData

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