I have a CH340g connected to my M1 MacBook Air running the latest Big Sur 11.2.3.
It appeared only one time in /dev, and now will not re-appear. I've tried plugging it in to both ports, unplugging everything except for the CH340g, and also kextunload, kextload on AppleUSBSerial.kext. It does not appear in /dev
Has anyone had any luck with this device? Or perhaps some advice?