Is it possible to download venus-os kernel source 4.19.81-v7l somewhere ?
asked
Kernel source for last Venus-os
Hi @Johnny Brusevold , you mean the one we use for the RaspberryPis? Yes, that source is defined here:
And, per the SRC_URI variable in that .bb file, that refers to here:
https://github.com/victronenergy/linux/tree/rpi_4.19.81
And then adds on patch on top, see .bb file for what I mean, ie the SRC_URI += etcetera line. File to be found by clicking back and forth a bit.
The rest of the GX devices is at 5.10.something. Defined here: https://github.com/victronenergy/meta-victronenergy/blob/master/meta-bsp/recipes-kernel/linux/linux-venus.bb, where refers to here:
https://github.com/victronenergy/linux/tree/venus-5.10.42..
If I find the peace and time someday, then my approach in getting the rpis to 5.10 would be to:
a) get the 5.10 branch from raspberrypi themselves. Rather than a standard 5.10 kernel I mean.
b) check our raspberrypi-4.19.81 branch for commits that need adding.
c) check out the above linked venus-5.10.42 branch for commits that need adding.
Build that, test it on the various rpis.
And if it works, have it in a repo, and then start working on the .bb file.
Thank you for your answer @mvader (Victron Energy)
I downloaded the desired version and added some debug
instructions and compiled kernel to find usb issue.
I think it's in the 'old pci' driver that is causing the problem. But for me it is too much work to fix this on the venus kernel. There is a lot of difference in many of the drivers that are tied together.
So for now I go for the original raspberry pi kernel tree. with some of the patches from the venus kernel. I still have not had any problems, slowdown, high energy consumption after running 3 units in test for a few weeks now. This is only in demo mode and without net.
Today I moved one of the devices to live system, so I will see how it works when I now implement some more devices.
Hi, thats exactly what I meant to say as well:
Rather than fixing 4.19 kernel, better prepare and switch to 5.10
Hi @Johnny Brusevold , which raspberrypi kernel are you using as a source?
and did you push your work somewhere?
I used this directly and added two patches locally
https://github.com/raspberrypi/linux
Patch 1
https://github.com/victronenergy/linux/commit/c65023cf4bbf86955c6c52bc72376e6fe32ad41c
Patch 2
https://github.com/victronenergy/linux/commit/fb01a308bf550ea244bcf2b465a01a0f19c6dd63
I have little experience with git, since the group I worked with some years ago used svn with a graphical interface.
@mvader (Victron Energy) thanks for your reply to @Johnny Brusevold, I've been searching for the kernel source tree for the RPi and could not find it anywhere until I found the above.
One additional question: where can I find the *_defconfig files (bcmrpi_defconfig, bcm2709_defconfig, bcm2711_defconfig)?
Thanks in advance.
You will find them in this folder
./linux/arch/arm/configs/
For Pi 2, Pi 3, Pi 3+, or Compute Module 3: KERNEL=kernel7 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig For Raspberry Pi 4: KERNEL=kernel7l make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2711_defconfig
@Johnny Brusevold, did you compile using a native armv7l or the Venus SDK? I have had to change the default RPI options file to have "# CONFIG_GCC_PLUGINS is not set". Without this I get compile errors.
Testing your ver 2.82 on a raspi4 ver1.4 this version the lcd_rotate=x won't rotate like the old version 2.80.41 i have tested as well.
When i change the config txt file? I know the raspi4 uses a different video driver compared to the raspi3 model.
Most other things are going except for the analog ports under the IO page
not showing up. Just found out a missing iio folder in sys/bus/iio is not there like the older ver <2.41 which has the that folder for the analog tom work.
I have checked the dbus-adc.conf file is in place and which it is.
Regards
Rob D
NZ
