NdisWriteRegisterUchar

NdisWriteRegisterUchar is called by the NIC driver to write a UCHAR to a memory-mapped device register.

VOID
  NdisWriteRegisterUchar(
    IN PUCHAR  Register,
    IN UCHAR  Data
    );

Parameters

Register

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

Data

Specifies the caller-supplied UCHAR that this function transfers to the Register.

Headers

Declared in Ndis.h. Include Ndis.h.

Comments

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

Callers of NdisWriteRegisterUchar can be running at any IRQL.

See Also

MiniportInitialize, NdisMMapIoSpace, NdisReadRegisterUchar, NdisWriteRegisterUlong, NdisWriteRegisterUshort