ch341 communication problem from kernel.org
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
Issue with esp8266 esptool communications.
This is a bug known at kernel.org
"Bug 214131 - ch341 communication problem"
https:/
It has a resolution, however it appears this has not been pushed out to Ubuntu yet so it is affecting my system.
The issue causes esptool not to be able to communicate with esp8266/esp32 USB chips.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-
ProcVersionSign
Uname: Linux 5.4.0-88-generic x86_64
ApportVersion: 2.20.11-
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CasperMD5CheckR
Date: Tue Oct 12 22:33:36 2021
HibernationDevice: # RESUME=
InstallationDate: Installed on 2015-05-07 (2350 days ago)
InstallationMedia: Xubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: Acer Aspire VN7-571
ProcEnviron:
LANGUAGE=en_GB:en
TERM=xterm-
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
linux-firmware 1.187.17
SourcePackage: linux
StagingDrivers: ashmem_linux
UpgradeStatus: Upgraded to focal on 2020-11-16 (330 days ago)
dmi.bios.date: 09/12/2014
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.08
dmi.board.
dmi.board.name: Aspire VN7-571
dmi.board.vendor: Acer
dmi.board.version: V1.08
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.
dmi.modalias: dmi:bvnInsydeCo
dmi.product.family: Sharkbay System
dmi.product.name: Aspire VN7-571
dmi.product.sku: Aspire VN7-571_091B_1.08
dmi.product.
dmi.sys.vendor: Acer
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 s-five: ~# lsusb s-five: ~#
[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@butterwick
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@butterwick