Hello. I'm using Ubuntu 18.04.3 LTS. I'm trying to get my JT308 RFID reader working. Please help. $ sudo modprobe usbserial vendor=0xffff product=0x0035 $ dmesg ... [ 266.304578] usbserial_generic 2-1.5:1.1: The "generic" usb-serial driver is only for testing and one-off prototypes. [ 266.304579] usbserial_generic 2-1.5:1.1: Tell linux-usb@xxxxxxxxxxxxxxx to add your device to a proper driver. $ lsusb -d ffff:0035 -v Bus 002 Device 003: ID ffff:0035 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0xffff idProduct 0x0035 bcdDevice 1.00 iManufacturer 1 Sycreader iProduct 2 USB Reader iSerial 3 08FF20150112 bNumConfigurations 1