Sorry, I realised I didn't have the esp8266 chip connected. After connecting, here is brief output:
[26645.130953] usb 2-3: new full-speed USB device number 13 using xhci_hcd [26645.283500] usb 2-3: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.54 [26645.283508] usb 2-3: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [26645.283513] usb 2-3: Product: USB2.0-Ser! [26645.285027] ch341 2-3:1.0: ch341-uart converter detected [26645.285578] usb 2-3: ch341-uart converter now attached to ttyUSB0 root@butterwicks-five:~# lsusb Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 002 Device 003: ID 1bcf:2c6e Sunplus Innovation Technology Inc. HD WebCam Bus 002 Device 005: ID 04ca:300d Lite-On Technology Corp. Atheros AR3012 Bluetooth Bus 002 Device 013: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub root@butterwicks-five:~# -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946796 Title: ch341 communication problem from kernel.org To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1946796/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
