include/linux/patchkey.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * <linux/patchkey.h> -- definition of _PATCHKEY macro
   4  *
   5  * Copyright (C) 2005 Stuart Brady
   6  *
   7  * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
   8  * clear whether removing this would break anything in userspace.
   9  *
  10  * Do not include this file directly.  Please use <sys/soundcard.h> instead.
  11  * For kernel code, use <linux/soundcard.h>
  12  */
  13 #ifndef _LINUX_PATCHKEY_H
  14 #define _LINUX_PATCHKEY_H
  15
  16 #  include <asm/byteorder.h>
  17 #include <uapi/linux/patchkey.h>
  18
  19 #  if defined(__BIG_ENDIAN)
  20 #    define _PATCHKEY(id) (0xfd00|id)
  21 #  elif defined(__LITTLE_ENDIAN)
  22 #    define _PATCHKEY(id) ((id<<8)|0x00fd)
  23 #  else
  24 #    error "could not determine byte order"
  25 #  endif
  26 #endif /* _LINUX_PATCHKEY_H */