null.h 2.0 KB

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  1. #ifndef _DEV_NULL_H_
  2. #define _DEV_NULL_H_
  3. /*
  4. * Copyright (C) 2000-2004 by ETH Zurich
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in the
  14. * documentation and/or other materials provided with the distribution.
  15. * 3. Neither the name of the copyright holders nor the names of
  16. * contributors may be used to endorse or promote products derived
  17. * from this software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED BY ETH ZURICH AND CONTRIBUTORS
  20. * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  22. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ETH ZURICH
  23. * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  24. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  25. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  26. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  27. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  29. * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30. * SUCH DAMAGE.
  31. *
  32. * For additional information see http://www.ethernut.de/
  33. *
  34. */
  35. /* unix_devs.h - a nut/os null device driver
  36. *
  37. * 2005.05.21 Matthias Ringwald <matthias.ringwald@inf.ethz.ch>
  38. *
  39. */
  40. /*
  41. * $Log: null.h,v $
  42. * Revision 1.1 2005/06/21 16:46:38 freckle
  43. * added standard /dev/null as devNull in NutOS.
  44. *
  45. *
  46. */
  47. #include <sys/device.h>
  48. #ifdef __cplusplus
  49. extern "C" {
  50. #endif
  51. /*
  52. * Available devices.
  53. */
  54. extern NUTDEVICE devNull;
  55. #ifdef __cplusplus
  56. }
  57. #endif
  58. #endif