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NdisWriteRegisterUchar (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 x has been deprecated and is superseded by NDIS 6.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.

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

Syntax


VOID NdisWriteRegisterUchar(
  _In_ PUCHAR Register,
  _In_ UCHAR  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 [in]

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

See NdisWriteRegisterUchar.

Header

Ndis.h (include Ndis.h)

IRQL

Any level

See also

MiniportInitialize
NdisMMapIoSpace
NdisReadRegisterUchar
NdisWriteRegisterUlong
NdisWriteRegisterUshort

 

 

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