The important numbers are the idVendor and the idProduct you can look them up on the web (e.g. usb 2-1: FTDI USB Serial Device converter now attached to ttyUSB0

ftdi_sio 2-1:1.0: FTDI USB Serial Device converter detected usbserial: USB Serial support registered for FTDI USB Serial Device

usbcore: registered new interface driver ftdi_sio usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: New USB device found, idVendor=0403, idProduct=6001 usb 2-1: ch341-uart converter now attached to ttyUSB0Īnd the below is for a SparkFun RedBoard with FT232RL usb 2-1: new full-speed USB device number 3 using uhci_hcd

usbserial: USB Serial support registered for ch341-uart usbcore: registered new interface driver ch341 usbserial: USB Serial support registered for generic usbcore: registered new interface driver usbserial_generic usbcore: registered new interface driver usbserial usb 2-1: New USB device strings: Mfr=0, Product=2, SerialNumber=0 usb 2-1: New USB device found, idVendor=1a86, idProduct=7523 cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adaptersįor a board board with a CH340, you should see usb 2-1: new full-speed USB device number 2 using uhci_hcd usbcore: registered new interface driver cdc_acm cdc_acm 4-1:1.0: ttyACM0: USB ACM device usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=220 usb 4-1: New USB device found, idVendor=2a03, idProduct=0043 Once the scrolling stops, connect your board.įor an official Arduino Uno with 16U2, you should see something like usb 4-1: new full-speed USB device number 2 using uhci_hcd You get a long list scrolling over the screen. The -w / -follow causes dmesg not to finish and any new activity will be displayed. Just to refresh my Linux knowledge a bit The dmesg command is dmesg -wīest to start with your board disconnected before running the command.

Arduino ch341 serial driver linux