LXR linux/include/uapi/linux/patchkey.h

   1/*
   2 * <linux/patchkey.h> -- definition of _PATCHKEY macro
   3 *
   4 * Copyright (C) 2005 Stuart Brady
   5 *
   6 * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
   7 * clear whether removing this would break anything in userspace.
   8 *
   9 * Do not include this file directly.  Please use <sys/soundcard.h> instead.
  10 * For kernel code, use <linux/soundcard.h>
  11 */
  12
  13#ifndef _LINUX_PATCHKEY_H_INDIRECT
  14#error "patchkey.h included directly"
  15#endif
  16
  17#ifndef _UAPI_LINUX_PATCHKEY_H
  18#define _UAPI_LINUX_PATCHKEY_H
  19
  20/* Endian macros. */
  21#ifndef __KERNEL__
  22#  include <endian.h>
  23#endif
  24
  25#if !defined(__KERNEL__)
  26#if defined(__BYTE_ORDER)
  27#  if __BYTE_ORDER == __BIG_ENDIAN
  28#    define _PATCHKEY(id) (0xfd00|id)
  29#  elif __BYTE_ORDER == __LITTLE_ENDIAN
  30#    define _PATCHKEY(id) ((id<<8)|0x00fd)
  31#  else
  32#    error "could not determine byte order"
  33#  endif
  34#endif
  35#endif
  36
  37#endif /* _UAPI_LINUX_PATCHKEY_H */
  38