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 _LINUX_PATCHKEY_H 18#define _LINUX_PATCHKEY_H 19 20/* Endian macros. */ 21# include <endian.h> 22 23#if defined(__BYTE_ORDER) 24# if __BYTE_ORDER == __BIG_ENDIAN 25# define _PATCHKEY(id) (0xfd00|id) 26# elif __BYTE_ORDER == __LITTLE_ENDIAN 27# define _PATCHKEY(id) ((id<<8)|0x00fd) 28# else 29# error "could not determine byte order" 30# endif 31#endif 32 33#endif /* _LINUX_PATCHKEY_H */ 34