-Using real connection to CAN bus of your car using the USB CAN adapter connected to the OBD2 connector. (This instruction assuming a speed of 500000kbps for your device, you can try supported bitrate like 125000, 250000 if 500000 doesn't work) :
+Using real connection to CAN bus of your car using the USB CAN adapter connected to the OBD2 connector.
+
+Once connected, launch ```dmesg``` command and search which device to use :
+
+```bash
+# dmesg
+[...]
+[ 131.871441] usb 1-3: new full-speed USB device number 4 using ohci-pci
+[ 161.860504] can: controller area network core (rev 20120528 abi 9)
+[ 161.860522] NET: Registered protocol family 29
+[ 177.561620] usb 1-3: USB disconnect, device number 4
+[ 191.061423] usb 1-2: USB disconnect, device number 3
+[ 196.095325] usb 1-2: new full-speed USB device number 5 using ohci-pci
+[ 327.568882] usb 1-2: USB disconnect, device number 5
+[ 428.594177] CAN device driver interface
+[ 1872.551543] usb 1-2: new full-speed USB device number 6 using ohci-pci
+[ 1872.809302] usb_8dev 1-2:1.0 can0: firmware: 1.7, hardware: 1.0
+[ 1872.809356] usbcore: registered new interface driver usb_8dev
+```
+
+Here device is named **can0**.
+
+This instruction assuming a speed of 500000kbps for your CAN bus, you can try others supported bitrate like 125000, 250000 if 500000 doesn't work: