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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/*3 * <linux/patchkey.h> -- definition of _PATCHKEY macro4 *5 * Copyright (C) 2005 Stuart Brady6 *7 * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't8 * 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 14#ifndef _LINUX_PATCHKEY_H_INDIRECT15#error "patchkey.h included directly"16#endif17 18#ifndef _UAPI_LINUX_PATCHKEY_H19#define _UAPI_LINUX_PATCHKEY_H20 21/* Endian macros. */22#ifndef __KERNEL__23# include <endian.h>24#endif25 26#if !defined(__KERNEL__)27#if defined(__BYTE_ORDER)28# if __BYTE_ORDER == __BIG_ENDIAN29# define _PATCHKEY(id) (0xfd00|id)30# elif __BYTE_ORDER == __LITTLE_ENDIAN31# define _PATCHKEY(id) ((id<<8)|0x00fd)32# else33# error "could not determine byte order"34# endif35#endif36#endif37 38#endif /* _UAPI_LINUX_PATCHKEY_H */39