3 bool Ledtest_Set(int id, double value)
6 FILE *led_handle = NULL; //code reference: http://learnbuildshare.wordpress.com/2013/05/19/beaglebone-black-controlling-user-leds
7 const char *led_format = "/sys/class/leds/beaglebone:green:usr%d/brightness";
11 for (int i = 0; i < 4; i++)
13 snprintf(buf, 50, led_format, i);
14 if ((led_handle = fopen(buf, "w")) != NULL)
17 fwrite("1", sizeof(char), 1, led_handle);
19 fwrite("0", sizeof(char), 1, led_handle);
24 Log(LOGDEBUG, "LED fopen failed: %s", strerror(errno));