Bug 710588

Summary:	dev-embedded/arduino-1.8.5 Upload sketch fails with kernel <=5.5.6
Product:	Gentoo Linux	Reporter:	Martin Zwicknagl <martin.zwicknagl>
Component:	Current packages	Assignee:	Embedded Gentoo Team <embedded>
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	jstein
Priority:	Normal	Keywords:	PATCH
Version:	unspecified
Hardware:	AMD64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Patch for gentoo-sources-5.5.5 to get Arduino working again Error-Message from uploading to an arduino uno

Description Martin Zwicknagl 2020-02-23 16:40:22 UTC

Uploading a sketch in the arduino IDE does not work with kernel 5.5.x

Reproducible: Always

Steps to Reproduce:
1. Start Arduino IDE
2. select sketch to upload
 

Actual Results:  
Upload fails with:

avrdude: stk500_getparm(): (a) protocol error, expect=0x14

Expected Results:  
Upload success

Comment 1 Martin Zwicknagl 2020-02-23 16:43:51 UTC

This is a known bug see:

https://bugs.archlinux.org/task/65368

By patching ch341.c in the gentoo-sources-5.5.5 the problem is resolved see:

https://www.spinics.net/lists/linux-usb/msg190759.html

See my next post for a patch of the gentoo-sources

Comment 2 Martin Zwicknagl 2020-02-23 16:46:26 UTC

Created attachment 615350 [details, diff]
Patch for gentoo-sources-5.5.5 to get Arduino working again

Place the patch in
/etc/portage/patches/sys-kernel/gentoo-sources-5.5.5/ch341.patch

and re-emerge gentoo-sources, compile and install the kernel.
Then you can upload sketches to the arduino-uno again

Comment 3 Martin Zwicknagl 2020-02-23 16:48:06 UTC

Created attachment 615352 [details]
Error-Message from uploading to an arduino uno

Comment 4 Martin Zwicknagl 2020-02-28 21:06:40 UTC

bug is fixed in gentoo-kernel-5.5.7

can be closed