devctl.h 2.0 KB

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  1. /*
  2. * Copyright (c) 2016 Joel Sherrill <joel@rtems.org>. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. * 1. Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * 2. Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. *
  13. * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23. * SUCH DAMAGE.
  24. */
  25. #ifndef _POSIX_DEVCTL_h_
  26. #define _POSIX_DEVCTL_h_
  27. /*
  28. * The posix_devctl() method is defined by POSIX 1003.26-2003. Aside
  29. * from the single method, it adds the following requirements:
  30. *
  31. * + define _POSIX_26_VERSION to 200312L
  32. * + add _SC_POSIX_26_VERSION in <unistd.h>. Return _POSIX_26_VERSION
  33. * + application must define _POSIX_26_C_SOURCE to use posix_devctl().
  34. * + posix_devctl() is prototyped in <devctl.h>
  35. */
  36. #ifdef _POSIX_26_C_SOURCE
  37. #include <sys/cdefs.h>
  38. int posix_devctl(
  39. int fd,
  40. int dcmd,
  41. void *__restrict dev_data_ptr,
  42. size_t nbyte,
  43. int *__restrict dev_info_ptr
  44. );
  45. #endif
  46. #endif