Rapid disconnect/reconnect of device isn't recognized.

Bug Description:

Rapid disconnection and reconnection doesn’t seem to be properly recognized.

This is related to this bug posted here: https://github.com/microsoft/vscode-serial-monitor/issues/26, where someone posted this issue on the serial monitor.

Steps to Reproduce:

1. Plug in a device
2. Unplug the device and quickly plug the device back in.

Expected: The package correctly picks up both events and the device is properly picked up on reconnection Actual: It doesn’t seem to handle the reconnection event, it seems that reconnections happen too quickly for it to handle?

Additional Information

• Operating System: Windows 11
• Runtime (node -v or electron -v): 16.13.1
• Node USB Version (npm ls usb): 2.5.0

[thegecko]

I would expect an update to resolve this issue as I suspect the older polling mechanism on Windows is the culprit. Easy to test…

[mildsunrise]

for context: hotplug detection has never really worked correctly in Windows until 2.5.0. before that, we regularly polled the current devices and relied on libusb to tell us whether two devices are the same or not.

if libusb is still recognizing a device as “the same” after a reconnection, then I’m afraid there’s little we can do and this is an issue that libusb should fix.

we could do additional validation by checking that busNumber and deviceAddress have not changed, but something tells me libusb is already doing that. maybe Windows is reusing the deviceAddress?

in any case, even if it does work in 2.5.0, it’s essentially a data race and you should not rely on it