WRITE_PORT_UCHAR

VOID
    WRITE_PORT_UCHAR(
        IN PUCHAR  Port,
        IN UCHAR  Value
        );

WRITE_PORT_UCHAR writes a byte to the specified port address.

Parameters

Port

Points to the port, which must be a mapped memory range in I/O space.

Value

Specifies a byte to be written to the port.

Comments

Callers of WRITE_PORT_UCHAR can be running at any IRQL, assuming the Port is resident, mapped device memory.