can-utils | Linux-CAN / SocketCAN user space applications | Automation library

I am trying to use CAN J1939 standard on an embedded Linux system running Ubuntu 18.04, kernel 5.4.0-52-generic.

This elinux page indicates that j1939.h "got in the mainline kernel since v5.4". And kernel.org's documentation for j1939 implies that it is in the main kernel.

Lastly, I do have can-utils installed.

When I compile a cpp file with #include , I get a no such file or directory error.

I've gone through linux/can directory to confirm and j1939.h is not there. Is there any reason why my v5.4 kernel wouldn't have j1939.h? How can I best use j1939.h in my program?

Operating System: Rasbian

I am trying to follow this https://www.npmjs.com/package/@canboat/canboatjsto to use the following command : candump can0 | candumpanalyzer. However, after trying all these commands:

I'm trying to build an application using the Yocto SDK. The compilation worked well, but when it comes to linking, following linker errors occurs:

I'm writing a CAN driver and want to set up some tests for it. I have a simple echo program (accepts a can frame and echoes it back). I'm using can-utils for this and would use cangen to generate random data, log it, then make sure the frames were received and echoed back.

Everything seems to be working but there is some annoying behavior from candump. When sending non-FD frames, it does not print a leading zero for the DLC. See here (messages are sent, and then the echoed message - yes I'm aware it shouldn't use the same node id to echo back this is just for testing purposes):

I am having trouble getting CAN working on my beaglebone green using can-utils. I have a bitscope hooked up to the CAN pins but I'm not seeing any output..

I have two nodes connected to one CAN bus. The first node is a black-box, controlled by some real-time hardware. The second node is a Linux machine with attached PEAK-USB CAN controller:

I am trying to send 29bit EFF CAN messages over socket can, but for some reason it sends them with 11bit identifier cutting off 5 bytes from ID. Using loopback mode, through candump i can see that messages are received as 11bit.

I get no errors, nothing, thats why i am confused

I am using raspberry pi 3b+ if that makes any difference. And Can-utils library.

I am making a can-bus network that will survey some sensors to gather data in order to have better understanding of an environment that we want to analyse and control. In order to do so we use candump to monitor traffic and can send to sen information (from CAN-BUS files that can be find in this address: https://github.com/linux-can/can-utils.git). I modified some of the codes and they compile well, now what I want to do is to make a parent code that can orchestrate this C programs in order to control the environment. I want to use python or c++ to do this.

Example Algorithm

I have set up two vcan devices and I want to treat them as if they were connected together. I want to be able to use can-utils candump to listen on one line, and send can messages from the other. How can I do that without a physical device?

For clarification, I am writing software to communicate over CAN which I am already capable of, but to facilitate the actual data gathering and further development, I need two can enabled devices to communicate with each other. While a simple solution in the real world, solved by physically connecting devices together, I need a programmatic solution that will work on the computer.