CAN-bus read and filter

[raxsix]

I have CAN Bus IoT Module installed and connected to CAN traffic generator. If I enter to the target module (WP7502) over the ssh and type ifconfig then I can see that CAN is working

can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:6683 errors:0 dropped:0 overruns:0 frame:0
TX packets:373 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:53464 (52.2 KiB) TX bytes:2984 (2.9 KiB)

I need to filter out messages and send them to MQTT server
What is the simplest way to read and filter CAN messages?

[Francis.duhaut]

Hello,

I use SocketCAN with Linux to manage CANBUS connection with the IoT CARD.
You can find source code on Google.

Socket CAN include filtering messaging.

It’s easy to implement.

Francis.

[Francis.duhaut]

Look my reply on this topic :

CAN IoT Card driver

Finally, saw the can0 line with ifconfig command after all those steps: echo 2 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio2/direction echo 1 > /sys/class/gpio/gpio2/value // Enable level shifter on the CAN IoT card echo 13 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio13/direction echo 1 > /sys/class/gpio/gpio13/value modprobe can modprobe can-dev modprobe can-raw modprobe mcp251x ip link set can0 type can bitrate 125000 triple-sampling on ifconfig can0 up …