NdisReadRegisterUchar is called by the miniport driver to read a UCHAR 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 UCHAR read from Register .
If a driver calls this function, a NIC's device registers must be mapped to noncached memory during driver initialization.
|Supported for NDIS 6.0 and NDIS 5.1 drivers (see NdisReadRegisterUchar (NDIS 5.1)) in Windows Vista. Supported for NDIS 5.1 drivers (see NdisReadRegisterUchar (NDIS 5.1)) in Windows XP.|