NdisRawWritePortBufferUchar writes a specified number of bytes from a caller-supplied buffer to a given I/O port.
VOID NdisRawWritePortBufferUchar( _In_ ULONG_PTR Port, _In_ PUCHAR Buffer, _In_ ULONG Length );
- Port [in]
Specifies the I/O port. This address falls in a range that was mapped during initialization with NdisMRegisterIoPortRange.
- Buffer [in]
Pointer to a caller-allocated resident buffer containing the bytes to be written.
- Length [in]
Specifies the number of bytes to write to the I/O port.
A miniport driver calls NdisRawWritePortBufferUchar to transfer a sequence of bytes, one at a time, to a NIC.
NdisRawWritePortBufferUchar runs fast because it need not map a bus-relative port address onto a host-dependent logical port address at every call.
|Supported for NDIS 6.0 and NDIS 5.1 drivers (see NdisRawWritePortBufferUchar (NDIS 5.1)) in Windows Vista. Supported for NDIS 5.1 drivers (see NdisRawWritePortBufferUchar (NDIS 5.1)) in Windows XP.|