ExAcquireFastMutex
    ExReleaseFastMutex

    KeGetCurrentIrql
    KfAcquireSpinLock
    KfLowerIrql
    KfRaiseIrql
    KfReleaseSpinLock

    READ_PORT_BUFFER_UCHAR
    READ_PORT_BUFFER_ULONG
    READ_PORT_BUFFER_USHORT
    READ_PORT_UCHAR
    READ_PORT_ULONG
    READ_PORT_USHORT
    WRITE_PORT_BUFFER_UCHAR
    WRITE_PORT_BUFFER_ULONG
    WRITE_PORT_BUFFER_USHORT
    WRITE_PORT_UCHAR
    WRITE_PORT_ULONG
    WRITE_PORT_USHORT