Method list

java/libraries/io/src/processing/io/LED.java:158–176

Lists all available LED devices @return String array @webref

()

   *  @webref
   */
  public static String[] list() {
    if (NativeInterface.isSimulated()) {
      // as on the Raspberry Pi
      return new String[]{ "led0", "led1" };
    }

    ArrayList<String> devs = new ArrayList<>();
    File dir = new File("/sys/class/leds");
    File[] files = dir.listFiles();
    if (files != null) {
      for (File file : files) {
        devs.add(file.getName());
      }
    }
    // listFiles() does not guarantee ordering
    String[] tmp = devs.toArray(new String[devs.size()]);
    Arrays.sort(tmp);
    return tmp;
  }
}