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Message #183769
[Bug 1591226] IwConfig.txt
apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1591226/+attachment/4682753/+files/IwConfig.txt
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https://bugs.launchpad.net/bugs/1591226
Title:
ch341 usb serial converter kernel driver parity patch missing
Status in linux package in Ubuntu:
Triaged
Bug description:
I have several pieces of this cheap Chinese USB2serial port converter,
which uses ch341.ko kernel module.
By default / fault, the parity function of this chip is not implemented in the kernel driver.
This causes that the converter is UNUSABLE on ubuntu linux 14.04 (latest updates installed, default kernel, current version 3.13.0-88-generic)
There is a fix for that, applying that patch makes it work as it should be.
All current ubuntu kernels miss this patch:
http://blog.xentoo.info/2015/12/31/ubuntu-14-04-and-usb-to-serial-ch341-chinese-device-from-ebay/
I have to recompile the kernel module ch341.ko every time when new kernel version is installed.
It seems to me while googling this, that somehow this fix haven't got into mainstream kernel.
Please include this patch to all ubuntu kernel versions!
Thank you!
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ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: narancs 3260 F.... pulseaudio
/dev/snd/controlC0: narancs 3260 F.... pulseaudio
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=79d5ef01-c38c-44d6-9371-52cb0adb988e
InstallationDate: Installed on 2014-12-14 (546 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Hewlett-Packard HP ZBook 15
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=hu_HU.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-88-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash
ProcVersionSignature: Ubuntu 3.13.0-88.135-generic 3.13.11-ckt39
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.13.0-88-generic N/A
linux-backports-modules-3.13.0-88-generic N/A
linux-firmware 1.127.22
Tags: trusty
Uname: Linux 3.13.0-88-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 04/10/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L70 Ver. 01.08
dmi.board.name: 1909
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 94.51
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL70Ver.01.08:bd04/10/2014:svnHewlett-Packard:pnHPZBook15:pvrA3009DC10203:rvnHewlett-Packard:rn1909:rvrKBCVersion94.51:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ZBook 15
dmi.product.version: A3009DC10203
dmi.sys.vendor: Hewlett-Packard
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