* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
@ 2021-08-22 23:32 ` bugzilla-daemon
2021-08-23 7:09 ` bugzilla-daemon
` (8 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-22 23:32 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
loqs (kernel_bugzilla@entropy-collector.net) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kernel_bugzilla@entropy-col
| |lector.net
--- Comment #1 from loqs (kernel_bugzilla@entropy-collector.net) ---
What if you revert 3c18e9baee0ef97510dcda78c82285f52626764b
which was back-ported to 5.10-58 and 5.13.10?
I believe it is the same bug as discussed here
https://bugs.archlinux.org/task/71830
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
2021-08-22 23:32 ` [Bug 214131] " bugzilla-daemon
@ 2021-08-23 7:09 ` bugzilla-daemon
2021-08-23 9:07 ` bugzilla-daemon
` (7 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-23 7:09 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #2 from Paul Größel (pb.g@gmx.de) ---
Indeed, removing
.bulk_in_size = 512,
and recompiling my 5.13.10 kernel solved the issue.
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
2021-08-22 23:32 ` [Bug 214131] " bugzilla-daemon
2021-08-23 7:09 ` bugzilla-daemon
@ 2021-08-23 9:07 ` bugzilla-daemon
2021-08-23 9:14 ` bugzilla-daemon
` (6 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-23 9:07 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #3 from Johan Hovold (johan@kernel.org) ---
Thanks for reporting and tracking down the commit that caused the
regression.
Could you be a bit more specific about the symptoms here? Judging from a
quick look at the github thread, it appears that the device is still
working although timing may have changes slightly. The arch thread
indicates that the device doesn't even enumerate, which does not seem to
be the case here.
Also please provide the output of "lsusb -v" for this device.
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (2 preceding siblings ...)
2021-08-23 9:07 ` bugzilla-daemon
@ 2021-08-23 9:14 ` bugzilla-daemon
2021-08-23 9:14 ` bugzilla-daemon
` (5 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-23 9:14 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #4 from Paul Größel (pb.g@gmx.de) ---
Created attachment 298433
--> https://bugzilla.kernel.org/attachment.cgi?id=298433&action=edit
lsusb -v
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (3 preceding siblings ...)
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
` (4 subsequent siblings)
9 siblings, 1 reply; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-23 9:14 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #5 from Paul Größel (pb.g@gmx.de) ---
I agree, I couldn't find any enumerate related symptoms here:
dmesg:
[ 7572.641499] usb 3-3.4: new full-speed USB device number 7 using xhci_hcd
[ 7572.731906] usb 3-3.4: New USB device found, idVendor=1a86, idProduct=7523,
bcdDevice= 2.63
[ 7572.731910] usb 3-3.4: New USB device strings: Mfr=0, Product=2,
SerialNumber=0
[ 7572.731912] usb 3-3.4: Product: USB2.0-Serial
[ 7572.788929] ch341 3-3.4:1.0: ch341-uart converter detected
[ 7572.802958] usb 3-3.4: ch341-uart converter now attached to ttyUSB0
lsusb -v see attachment above
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Bug 214131] ch341 communication problem
2021-08-23 9:14 ` bugzilla-daemon
@ 2021-08-24 11:44 ` Johan Hovold
0 siblings, 0 replies; 13+ messages in thread
From: Johan Hovold @ 2021-08-24 11:44 UTC (permalink / raw)
To: bugzilla-daemon; +Cc: linux-usb
On Mon, Aug 23, 2021 at 09:14:49AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=214131
>
> --- Comment #5 from Paul Größel (pb.g@gmx.de) ---
> I agree, I couldn't find any enumerate related symptoms here:
I was able to reproduce the problem here. The device doesn't send a
zero-length package in case the received data is a multiple of the
endpoint size so that the bulk transfer doesn't complete (e.g. your
flashing application may not receive replies).
We need to revert the offending commit until we can figure out how to
configure the device to send ZLPs.
Thanks again for reporting this, and sorry about the breakage.
Johan
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (4 preceding siblings ...)
2021-08-23 9:14 ` bugzilla-daemon
@ 2021-08-24 11:44 ` bugzilla-daemon
2021-08-25 7:21 ` bugzilla-daemon
` (3 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-24 11:44 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #7 from Johan Hovold (johan@kernel.org) ---
On Mon, Aug 23, 2021 at 09:14:49AM +0000, bugzilla-daemon@bugzilla.kernel.org
wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=214131
>
> --- Comment #5 from Paul Größel (pb.g@gmx.de) ---
> I agree, I couldn't find any enumerate related symptoms here:
I was able to reproduce the problem here. The device doesn't send a
zero-length package in case the received data is a multiple of the
endpoint size so that the bulk transfer doesn't complete (e.g. your
flashing application may not receive replies).
We need to revert the offending commit until we can figure out how to
configure the device to send ZLPs.
Thanks again for reporting this, and sorry about the breakage.
Johan
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (5 preceding siblings ...)
2021-08-24 11:44 ` bugzilla-daemon
@ 2021-08-25 7:21 ` bugzilla-daemon
2021-10-04 9:21 ` bugzilla-daemon
` (2 subsequent siblings)
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-08-25 7:21 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #8 from Johan Hovold (johan@kernel.org) ---
For the record, I've applied the revert now and it should be backported
to the stable trees shortly:
https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial.git/commit/?h=usb-linus&id=df7b16d1c00ecb3da3a30c999cdb39f273c99a2f
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (6 preceding siblings ...)
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
9 siblings, 1 reply; 13+ messages in thread
From: bugzilla-daemon @ 2021-10-04 9:21 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
Bogusław Brandys (brandys@o2.pl) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |brandys@o2.pl
--- Comment #9 from Bogusław Brandys (brandys@o2.pl) ---
5.4.0-88-generic #99-Ubuntu SMP Thu Sep 23 17:29:00 UTC 2021 x86_64 x86_64
x86_64 GNU/Linux
Ubuntu 20.04.3 LTS
problem with ch341 driver re-appeared while in 5.4.0.-86 is working fine.
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [Bug 214131] ch341 communication problem
2021-10-04 9:21 ` bugzilla-daemon
@ 2021-10-11 8:55 ` Johan Hovold
0 siblings, 0 replies; 13+ messages in thread
From: Johan Hovold @ 2021-10-11 8:55 UTC (permalink / raw)
To: bugzilla-daemon; +Cc: linux-usb
On Mon, Oct 04, 2021 at 09:21:09AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote:
> --- Comment #9 from Bogusław Brandys (brandys@o2.pl) ---
> 5.4.0-88-generic #99-Ubuntu SMP Thu Sep 23 17:29:00 UTC 2021 x86_64 x86_64
> x86_64 GNU/Linux
>
> Ubuntu 20.04.3 LTS
>
> problem with ch341 driver re-appeared while in 5.4.0.-86 is working fine.
This issue has been fixed in mainline (and stable), but we have no idea
what Ubuntu puts in their kernels. Please report it them.
Johan
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (7 preceding siblings ...)
2021-10-04 9:21 ` bugzilla-daemon
@ 2021-10-11 8:55 ` bugzilla-daemon
2021-10-22 13:58 ` bugzilla-daemon
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-10-11 8:55 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
--- Comment #11 from Johan Hovold (johan@kernel.org) ---
On Mon, Oct 04, 2021 at 09:21:09AM +0000, bugzilla-daemon@bugzilla.kernel.org
wrote:
> --- Comment #9 from Bogusław Brandys (brandys@o2.pl) ---
> 5.4.0-88-generic #99-Ubuntu SMP Thu Sep 23 17:29:00 UTC 2021 x86_64 x86_64
> x86_64 GNU/Linux
>
> Ubuntu 20.04.3 LTS
>
> problem with ch341 driver re-appeared while in 5.4.0.-86 is working fine.
This issue has been fixed in mainline (and stable), but we have no idea
what Ubuntu puts in their kernels. Please report it them.
Johan
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug 214131] ch341 communication problem
2021-08-22 7:11 [Bug 214131] New: ch341 communication problem bugzilla-daemon
` (8 preceding siblings ...)
2021-10-11 8:55 ` bugzilla-daemon
@ 2021-10-22 13:58 ` bugzilla-daemon
9 siblings, 0 replies; 13+ messages in thread
From: bugzilla-daemon @ 2021-10-22 13:58 UTC (permalink / raw)
To: linux-usb
https://bugzilla.kernel.org/show_bug.cgi?id=214131
Johan Hovold (johan@kernel.org) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |johan@kernel.org
Resolution|--- |CODE_FIX
Assignee|drivers_usb@kernel-bugs.ker |johan@kernel.org
|nel.org |
--
You may reply to this email to add a comment.
You are receiving this mail because:
You are watching the assignee of the bug.
^ permalink raw reply [flat|nested] 13+ messages in thread