NdisRawReadPortUchar macro (ndis.h)

NdisRawReadPortUchar reads a byte from a given I/O port on the NIC.

Syntax

void NdisRawReadPortUchar(
  [in]   Port,
  [out]  Data
);

[in] Port

Specifies the I/O port. This address falls in a range that was mapped during initialization with NdisMRegisterIoPortRange.

[out] Data

Pointer to a caller-supplied variable in which this function returns a byte read in from the port.

None

NdisRawReadPortUchar runs fast because it need not map a bus-relative I/O port address onto a host-dependent logical port address at every call.

Requirement	Value
Minimum supported client	Supported for NDIS 6.0 and NDIS 5.1 drivers (see NdisRawReadPortUchar (NDIS 5.1)) in Windows Vista. Supported for NDIS 5.1 drivers (see NdisRawReadPortUchar (NDIS 5.1)) in Windows XP.
Target Platform	Universal
Header	ndis.h (include Ndis.h)
IRQL	Any level