root@79940fe:/usr# ip -d link show can0
2: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN mode DEFAULT group default qlen 10
link/can promiscuity 0
can state STOPPED restart-ms 0
mcp251x: tseg1 3…16 tseg2 2…8 sjw 1…4 brp 1…64 brp-inc 1
clock 8000000
root@79940fe:/usr# ip link set can0 bitspeed 250000
Error: either “dev” is duplicate, or “bitspeed” is a garbage.
root@79940fe:/usr# ip link set can0 up
RTNETLINK answers: Invalid argument