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 x has been deprecated and is superseded by NDIS 6.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.
- 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.
If a driver calls this function, its NIC's device registers must be mapped to noncached memory during driver initialization.