Summary of Problem

(Please answer all 3)

• What are you trying to do? Query the serial ports.
• What happens? I get a segmentation fault when I plug in a particular device.
• What should have happened? I should have seen the new device added.

Code to Reproduce the Issue

const serialport = require("serialport");
serialport.list().then(currentPorts => {
	console.log(currentPorts);
});

Versions, Operating System and Hardware

• SerialPort@? 9.0.2
• Node.js v? 12.18.0
• Windows? Linux? Mac? Windows 10
• Hardware and chipset? Dialog DA16200 debug port

The DA16200 appears to create a SerialPort device that windows cannot assign to a COM port. Unfortunately, the node-serialport module segfaults with no indication of an error when it encounters this device: I can’t even catch() it and recover, the process just ends. Even when I run with DEBUG=* I see no other messages. Windows Command Prompt prints nothing but Cygwin offers a clue:

Peter@CAPYBARA /cygdrive/c/Users/Peter/serialtmp
$ DEBUG=* node test-serial.js
  serialport/bindings loading WindowsBinding +0ms
  serialport/stream .list +0ms
Segmentation fault

Here is a picture of the orphan Serial Port appearing in Device Manager:

How do I enable better error handling so that my application doesn’t segfault due to serialport?