SerialPort.getInfo()
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The SerialPort.getInfo() method of the SerialPort interface returns a Promise that resolves with an object containing properties of the port.
Syntax
var promise = SerialPort.getInfo();
Parameters
None.
Return value
An object containing the following values.
usbVendorId-  
If the port is part of a USB device, an unsigned short integer that identifies a USB device vendor, otherwise
undefined. usbProductId-  
If the port is part of a USB device, an unsigned short integer that identiffies a USB device, otherwise
undefined. 
Specifications
| Specification | 
|---|
| Web Serial API  # dom-serialport-getinfo  | 
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| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
getInfo | 
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    https://developer.mozilla.org/en-US/docs/Web/API/SerialPort/getInfo