tests/drivers/linux_input.c

   1 /*****************************************************************************
   2  * This file is part of gfxprim library.                                     *
   3  *                                                                           *
   4  * Gfxprim is free software; you can redistribute it and/or                  *
   5  * modify it under the terms of the GNU Lesser General Public                *
   6  * License as published by the Free Software Foundation; either              *
   7  * version 2.1 of the License, or (at your option) any later version.        *
   8  *                                                                           *
   9  * Gfxprim is distributed in the hope that it will be useful,                *
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  12  * Lesser General Public License for more details.                           *
  13  *                                                                           *
  14  * You should have received a copy of the GNU Lesser General Public          *
  15  * License along with gfxprim; if not, write to the Free Software            *
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                        *
  17  * Boston, MA  02110-1301  USA                                               *
  18  *                                                                           *
  19  * Copyright (C) 2009-2013 Cyril Hrubis <metan@ucw.cz>                       *
  20  *                                                                           *
  21  *****************************************************************************/
  22
  23  /*
  24
  25    Bare Linux Input event example.
  26
  27   */
  28
  29 #include <GP.h>
  30
  31 #include <input/GP_InputDriverLinux.h>
  32
  33 int main(int argc, char *argv[])
  34 {
  35         struct GP_InputDriverLinux *drv;
  36         GP_EVENT_QUEUE_DECLARE(event_queue, 640, 480);
  37
  38         GP_SetDebugLevel(2);
  39
  40         if (argc != 2) {
  41                 printf("Usage: %s /dev/input/eventX\n", argv[0]);
  42                 return 1;
  43         }
  44
  45         drv = GP_InputDriverLinuxOpen(argv[1]);
  46
  47         if (drv == NULL) {
  48                 printf("Failed to open input device\n");
  49                 return 1;
  50         }
  51
  52         for (;;) {
  53                 while (GP_InputDriverLinuxRead(drv, &event_queue) >= 1);
  54
  55                 GP_Event ev;
  56
  57                 while (GP_EventQueueGet(&event_queue, &ev))
  58                         GP_EventDump(&ev);
  59
  60                 usleep(1000);
  61         }
  62
  63         return 0;
  64 }