text: /*
   * Author: Jon Trulson <jtrulson@ics.com>
   * Copyright (c) 2015 Intel Corporation.
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  
  #include <unistd.h>
  #include <stdio.h>
  #include <signal.h>
  
  #include <upm_utilities.h>
  #include "nunchuck.h"
  
  bool shouldRun = true;
  
  void sig_handler(int signo)
  {
      if (signo == SIGINT)
          shouldRun = false;
  }
  
  int main(int argc, char **argv)
  {
      signal(SIGINT, sig_handler);
  
  //! [Interesting]
      // Instantiate a nunchuck controller bus 0
      nunchuck_context sensor = nunchuck_init(0);
  
      if (!sensor)
      {
          printf("%s: nunchuck_init() failed\n", __FUNCTION__);
          return 1;
      }
  
      while (shouldRun)
      {
          if (nunchuck_update(sensor))
          {
              printf("%s: nunchuck_update() failed\n", __FUNCTION__);
              nunchuck_close(sensor);
              return 1;
          }
  
          int x, y, z;
          nunchuck_get_stick(sensor, &x, &y);
          printf("stickX: %d stickY: %d\n", x, y);
  
          nunchuck_get_acceleration(sensor, &x, &y, &z);
          printf("accelX: %d accelY: %d accelZ: %d\n", x, y, z);
  
          bool bc, bz;
          nunchuck_get_buttons(sensor, &bc, &bz);
          printf("button C: %s\n",
                 ((bc) ? "pressed" : "not pressed"));
          printf("button Z: %s\n\n",
                 ((bz) ? "pressed" : "not pressed"));
  
          upm_delay_ms(100);
      }
  
      nunchuck_close(sensor);
  
      //! [Interesting]
      return 0;
  }
  