From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 214131] New: ch341 communication problem
Date: Sun, 22 Aug 2021 07:11:49 +0000 [thread overview]
Message-ID: <bug-214131-208809@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=214131
Bug ID: 214131
Summary: ch341 communication problem
Product: Drivers
Version: 2.5
Kernel Version: 5.14-rc5
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: USB
Assignee: drivers_usb@kernel-bugs.kernel.org
Reporter: pb.g@gmx.de
Regression: No
Created attachment 298411
--> https://bugzilla.kernel.org/attachment.cgi?id=298411&action=edit
captured communication
Several users reported their USB-Serial Adapter based on ch341 driver does not
communicate correctly anymore with kernels somewhere above 5.10.56-1.
The problem is that flashing an ESP8266 board is not possible anymore with
Arduino IDE resulting in a
"/dev/ttyUSB0 failed to connect: Failed to connect to ESP8266: Timed out
waiting for packet header"
error.
I can confirm this issue up to kernel 5.14-rc5.
Downgrading my kernel to 5.10.52 also solves the problem.
I attached two communication samples from github user jypma.
The issue is was discussed here:
https://github.com/espressif/esptool/issues/653
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next reply other threads:[~2021-08-22 7:11 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-22 7:11 bugzilla-daemon [this message]
2021-08-22 23:32 ` [Bug 214131] ch341 communication problem bugzilla-daemon
2021-08-23 7:09 ` bugzilla-daemon
2021-08-23 9:07 ` bugzilla-daemon
2021-08-23 9:14 ` bugzilla-daemon
2021-08-23 9:14 ` bugzilla-daemon
2021-08-24 11:44 ` Johan Hovold
2021-08-24 11:44 ` bugzilla-daemon
2021-08-25 7:21 ` bugzilla-daemon
2021-10-04 9:21 ` bugzilla-daemon
2021-10-11 8:55 ` Johan Hovold
2021-10-11 8:55 ` bugzilla-daemon
2021-10-22 13:58 ` bugzilla-daemon
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