Dump CAN traffic while using Linux driver

[godorizzi]

Hello,

I am using the Linux driver in a C++ application. I would like to dump all CAN traffic (generated by the application and received from CAN nodes).
How can I achieve this?

Thank you in advance

[M.Heidemann]

Hello,

Can you please tell us more about your request?

- Which driver variant do you use (CharDev /NetDev)
- Which API do you use (PCAN-BASIC, CAN 2.0 API, CAN FD API?, SocketCAN)?
- Can you give us an output for:

Code: Select all

uname -a

Bets Regards

Marvin

[godorizzi]

Hello,
sure:

- I am using CharDev
- Not sure about this one, but I am using functions from libpcan.h (LINUX_CAN_Open, LINUX_CAN_Read, CAN_Write etc.)
- And here is the output of uname -a:

Code: Select all

Linux g-VirtualBox 5.8.0-63-generic #71-Ubuntu SMP Tue Jul 13 15:59:12 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Thank tou

[M.Heidemann]

Hello,

This will not be feasible with the Chardev driver.

if you want to have a full dump of everything going on on the bus with exact timestamps,
you'll need to use a) SocketCAN and B) use a 2nd Channel to capture the bus-traffic.

In this case using candump will be sufficent.

Best Regards

Marvin

[godorizzi]

Okay thanks for the support.