update null modem emulator driver use cases
update null modem emulator driver use cases

akuhtz/serial-communication-manager,akuhtz/serial-communication-manager,RishiGupta12/SerialPundit,RishiGupta12/SerialPundit,RishiGupta12/serial-communication-manager,RishiGupta12/SerialPundit,akuhtz/serial-communication-manager,RishiGupta12/serial-communication-manager,RishiGupta12/SerialPundit,RishiGupta12/serial-communication-manager,akuhtz/serial-communication-manager