canbus's Introduction

canbus

canbus provides high-level facilities to interact with CAN sockets.

can-dump

can-dump prints data flowing on CAN bus.

Usage of can-dump:

sh> can-dump [options] <CAN interface>
   (use CTRL-C to terminate can-dump)

Examples:

 can-dump vcan0

$> can-dump vcan0
  vcan0  080 00000000  00 DE AD BE EF            |.....|
  vcan0  080 00000000  01 DE AD BE EF            |.....|
  vcan0  080 00000000  02 DE AD BE EF            |.....|
  vcan0  080 00000000  03 DE AD BE EF            |.....|
  vcan0  080 00000000  04 DE AD BE EF            |.....|
  vcan0  080 00000000  05 DE AD BE EF            |.....|
  vcan0  080 00000000  06 DE AD BE EF            |.....|
  vcan0  080 00000000  07 DE AD BE EF            |.....|
  vcan0  080 00000000  08 DE AD BE EF            |.....|
  vcan0  080 00000000  09 DE AD BE EF            |.....|
  vcan0  712 00000000  11 22 33 44 55 66 77 88   |."3DUFW.|
  vcan0  7fa 00000000  DE AD BE EF               |....|
[...]

can-send

can-send sends data on the CAN bus.

Usage of can-send:

sh> can-send [options] <CAN interface> <CAN frame>

where <CAN frame> is of the form: <ID-hex>#<frame data-hex>.

Examples:

 can-send vcan0 f12#1122334455667788
 can-send vcan0 ffa#deadbeef

$> can-dump vcan0 &
$> can-send vcan0 f12#1122334455667788
  vcan0  712 00000000  11 22 33 44 55 66 77 88   |."3DUFW.|
$> can-send vcan0 ffa#deadbeef
  vcan0  7fa 00000000  DE AD BE EF               |....|

References

$> modprobe can
$> modprobe can_raw
$> modprobe vcan

## setup vcan network devices
$> ip link add type vcan
$> ip link add dev vcan0 type vcan
$> ip link set vcan0 up

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