Apr 16 15:15:37 intel-corei7-64 afbd-agl-service-can-low-level@9.0[425]:  ERROR: [API low-can] Error sending : 32 Broken pipe [/w/workspace/release-jjb-icefish-snapshot/MACHINE/intel-corei7-64/label/agl-test-slave/repoclone/output/tmp/work/corei7-64-agl-linux/agl-service-can-low-level/9.0.1-r0/git/low-can-binding/utils/socketcan-bcm.cpp:110,write_message]
Apr 16 15:15:37 intel-corei7-64 afbd-agl-service-can-low-level@9.0[425]:  ERROR: [API low-can] Error write message id : 48 [/w/workspace/release-jjb-icefish-snapshot/MACHINE/intel-corei7-64/label/agl-test-slave/repoclone/output/tmp/work/corei7-64-agl-linux/agl-service-can-low-level/9.0.1-r0/git/low-can-binding/binding/low-can-subscription.cpp:755,tx_send]


cat /etc/dev-mapping.conf
; Default CAN device mapping
; Format has to follow ini rules key="value", notice " around value.

[CANbus-mapping]
hs='vcan1'
ls='slcan0'

intel-corei7-64:~# cat /etc/hvac.json
{
	"ledtemp": {
		"red": "/sys/class/leds/blinkm-3-9-red/brightness",
		"green": "/sys/class/leds/blinkm-3-9-green/brightness",
		"blue": "/sys/class/leds/blinkm-3-9-blue/brightness"
	},
	"can_device": "slcan0"
}

ifconfig

slcan0    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:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

vcan1     Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          UP RUNNING NOARP  MTU:72  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)


After candump slcan0

I got following
Apr 16 15:17:11 intel-corei7-64 kernel: can: raw protocol (rev 20170425)