NdisReadRegisterUlong macro

NdisReadRegisterUlong is called by the miniport driver to read a ULONG from a memory-mapped device register.

Syntax

void NdisReadRegisterUlong(
   Register,
   Data
);

Parameters

Register

Pointer to the memory-mapped register. This virtual address must fall within a range returned by an initialization-time call to NdisMMapIoSpace.

Data

Pointer to the caller-supplied variable in which this function returns the ULONG read from Register .

Return Value

None

Remarks

If a driver calls this function, a NIC's device registers must be mapped to noncached memory during driver initialization.

Requirements

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

See Also

MiniportInitializeEx

NdisMMapIoSpace

NdisReadRegisterUchar

NdisReadRegisterUshort

NdisWriteRegisterUlong