BOOLEAN
VgaPlaybackValidatorData(
      PVOID Context
  );

Routine Description:

    Performs all the DOS apps IO port accesses that were trapped by the
    validator. Only IO accesses that can be processed are WRITEs

    The number of outstanding IO access in deviceExtension is set to
    zero as a side effect.

    This function must be called via a call to VideoPortSynchronizeRoutine.

Arguments:

    Context - Context parameter passed to the synchronized routine.
        Must be a pointer to the miniport driver's device extension.

Return Value:

    TRUE.