Definition
Web Serial API defines SerialPort
[Exposed=(DedicatedWorker,Window), SecureContext]
interface SerialPort : EventTarget {
attribute EventHandler onconnect;
attribute EventHandler ondisconnect;
readonly attribute boolean connected;
readonly attribute ReadableStream readable;
readonly attribute WritableStream writable;
SerialPortInfo getInfo();
Promise<undefined> open(SerialOptions options);
Promise<undefined> setSignals(optional SerialOutputSignals signals = {});
Promise<SerialInputSignals> getSignals();
Promise<undefined> close();
Promise<undefined> forget();
};