NdisReadRegisterUlong macro (ndis.h)

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

Syntax

void NdisReadRegisterUlong(
  [in]   Register,
  [out]  Data
);

[in] Register

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

[out] Data

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

None

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

Requirement	Value
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