NdisReadRegisterUchar (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 x has been deprecated and is superseded by NDIS 6.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.
NdisReadRegisterUchar is called by the NIC driver to read a UCHAR from a memory-mapped device register.
Syntax
VOID NdisReadRegisterUchar(
_In_ PUCHAR Register,
_Out_ PUCHAR 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 UCHAR 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
Target platform |
Desktop |
Version |
|
Header |
Ndis.h (include Ndis.h) |
IRQL |
Any level |
See also