NdisReadPortUchar function

Note   NDIS 5. x has been deprecated and is superseded by NDIS 6. x. For new NDIS driver development, see Network Drivers Starting with Windows Vista. For information about porting NDIS 5. x drivers to NDIS 6. x, see Porting NDIS 5.x Drivers to NDIS 6.0.

NdisReadPortUchar is called by the miniport driver to read a UCHAR from a NIC's I/O port.

Syntax

VOID NdisReadPortUchar(
  _In_  NDIS_HANDLE NdisAdapterHandle,
  _In_  ULONG       Port,
  _Out_ PUCHAR      Data
);

Parameters

  • NdisAdapterHandle [in]
    Specifies the handle that the NDIS interface library associates with the network interface card.

  • Port [in]
    Specifies the I/O port.

  • Data [out]
    Pointer to the caller-supplied variable in which this function returns the byte read from Port.

Return value

None

Requirements

Target platform

Desktop

Version

Not supported for NDIS 6.0 drivers in Windows Vista. Supported for NDIS 5.1 drivers (see NdisReadPortUchar (NDIS 5.1)) in Windows XP.

Header

Ndis.h (include Ndis.h)

IRQL

Any level

See also

NdisRawReadPortUchar

NdisReadPortBufferUchar

NdisWritePortUchar

 

 

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