public link void SetValueA(bit n1){} = driver.set_valueA;
public link void SetValueB(bit n1){} = driver.set_valueB;
public link void OS_init(){} = driver.OS_init;
public link void OS_run100us(){} = driver.OS_run100us;
public link void Open(){} = driver.open;
public link void Close(){} = driver.close;
