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hartkopp / can-isotp

Linux Kernel Module for ISO 15765-2:2016 CAN transport protocol PLEASE NOTE: This module is part of the mainline Linux kernel since version 5.10
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Not able to compile on raspberry pi jessie #9

Closed swanandb2 closed 6 years ago

swanandb2 commented 6 years ago

I did tried to compile on raspberry pi jessie and observed following error:

make -C /lib/modules/4.9.78-v7+/build M=/home/pi/socCan/can-isotp PROJECT_DIR=/home/pi/socCan/can-isotp modules make[1]: /lib/modules/4.9.78-v7+/build: No such file or directory. Stop. Makefile:21: recipe for target 'modules' failed make: [modules] Error 2

I did tried to fix this using apt update and upgrade but issue is not getting fixed.

Following is my system configuration Linux pilinux 4.9.78-v7+ #1084 SMP Thu Jan 25 18:05:49 GMT 2018 armv7l GNU/Linux

Can someone please help me to resolve this issue?

hartkopp commented 6 years ago

Please follow https://github.com/hartkopp/can-isotp/blob/master/README.isotp ! At least you missed to install the correct linux-headers package. Before installing the kernel version specific Linux headers I had the same error message too.

swanandb2 commented 6 years ago

issue.txt I did tried to follow steps instruction looks like headers 4.9.78V are not present on raspbian cache. I feel only way is to re-install raspbian OS to 4.9.68V as I did not find any headers for 4.9.78. Please refer attach file for more details. Just to our findings, I have created symlink and build was successful. /lib/modules/4.9.78-v7+/build->/usr/src/linux-headers-4.9.78-v7+/ However, I was not able to insert module. I believe this issue is specific to OS and not socketCAN. Thanks for help.

hartkopp commented 6 years ago

E: Unable to locate package linux-headers-4.9.78-v7

Is there a '+' missing?

Did you try apt-get install linux-headers-4.9.78-v7+ ??

Can you send the error message when trying to load the can-isotp.ko module? Did you load the CAN framework module, e.g. with 'modprobe can' before?

klotztech commented 6 years ago

On a raspberrypi you can use rpi-source (refer to https://github.com/notro/rpi-source/wiki) to download the linux source code to a directory something like ./linux-<some hash>. Usually though, the source is located under /lib/modules/<kernel version>/build so you need to copy/move or symlink to the just downloaded folder this build directory (or copy it to /usr/src/.. and symlink to there). I used the following command line to do this:

ln -s /root/linux-90ac037dbeecbb514b677e43b53bc5b1a452ea22/ /usr/lib/modules/`uname -r`/build

Now you should be able to make the module, which you can then copy to the appropriate folder to load it using modprobe or automatically (/lib/modules/`uname -r`/extra/net/can). After copying run depmod to rebuild the kernel module maps.

Hope this helps! :)

(Tested on arch linux / kernel version 4.14.18-v7+)

swanandb2 commented 6 years ago

Thanks for your suggestion. I was able to build source code now