NdisReadRegisterUlong (NDIS 5.1) 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 x has been deprecated and is superseded by NDIS 6.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.

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

Syntax


VOID NdisReadRegisterUlong(
  _In_   PULONG Register,
  _Out_  PULONG Data
);

Parameters

Register [in]

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

Data [out]

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, its NIC's device registers must be mapped to noncached memory during driver initialization.

Requirements

Version

See NdisReadRegisterUlong.

Header

Ndis.h (include Ndis.h)

IRQL

Any level

See also

MiniportInitialize
NdisMMapIoSpace
NdisReadRegisterUchar
NdisReadRegisterUshort
NdisWriteRegisterUlong

 

 

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