They have introduced libusb_get_port_path. Because they don't have a unique serial number and sometimes they just. I only see data in my app every 10 seconds or so. I decided to try a 3DR telemetry radio which also uses the CP210X chip, but it doesn’t work so nice. This Arduino is wired directly over USB and works with no delays. ![]() I used it to write my app that reads from a CP210X. I’m assuming it is trying to connect to every device on the hub, is there a way I can make it only connect to the scanner and ignore other devices? I love that you have offered so much useful code. The third time I run the application it works. This happens three times and the app crashes each time when I try to scan. I only want to access the scanner, but when I run your demo application it says USB Connected followed by Device not Supported. ![]() I’m having an issue implementing this on a device that has a hub that has a thermal printer, card reader, and scanner attached to it.
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