diff options
| -rw-r--r-- | binding/hvac-demo-binding.c | 16 | ||||
| -rw-r--r-- | hvac.json | 5 |
2 files changed, 17 insertions, 4 deletions
diff --git a/binding/hvac-demo-binding.c b/binding/hvac-demo-binding.c index 7b7ca25..5a6debd 100644 --- a/binding/hvac-demo-binding.c +++ b/binding/hvac-demo-binding.c @@ -139,6 +139,12 @@ struct led_paths { .blue = BLUE }; +struct can_device { + const char *name; +} can_dev = { + .name = CAN_DEV +}; + static struct can_handler can_handler = { .socket = -1, .simulation = false, .send_msg = "SENDING CAN FRAME"}; static int open_can_dev_helper() @@ -156,7 +162,7 @@ static int open_can_dev_helper() else { // Attempts to open a socket to CAN bus - strcpy(ifr.ifr_name, CAN_DEV); + strcpy(ifr.ifr_name, can_dev.name); if(ioctl(can_handler.socket, SIOCGIFINDEX, &ifr) < 0) { AFB_ERROR("ioctl failed"); @@ -186,7 +192,7 @@ static int open_can_dev() int rc = retry(open_can_dev_helper); if(rc < 0) { - AFB_ERROR("Open of interface %s failed. Falling back to simulation mode", CAN_DEV); + AFB_ERROR("Open of interface %s failed. Falling back to simulation mode", can_dev.name); can_handler.socket = 0; can_handler.simulation = true; can_handler.send_msg = "FAKE CAN FRAME"; @@ -245,6 +251,7 @@ static uint8_t read_fanspeed() static int parse_config() { struct json_object *ledtemp = NULL; + struct json_object *candevice = NULL; struct json_object *jobj = json_object_from_file("/etc/hvac.json"); // Check if .json file has been parsed as a json_object @@ -270,6 +277,11 @@ static int parse_config() } } + // Extract can device + json_object_object_get_ex(jobj, "can_device", &candevice); { + can_dev.name = json_object_get_string(candevice); + } + // return 0 if all succeeded return 0; @@ -3,5 +3,6 @@ "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" - } -}
\ No newline at end of file + }, + "can_device": "vcan0" +} |