Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
patchkey.h
Go to the documentation of this file.
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 #ifndef _LINUX_PATCHKEY_H
13 #define _LINUX_PATCHKEY_H
14 
15 # include <asm/byteorder.h>
16 #include <uapi/linux/patchkey.h>
17 
18 # if defined(__BIG_ENDIAN)
19 # define _PATCHKEY(id) (0xfd00|id)
20 # elif defined(__LITTLE_ENDIAN)
21 # define _PATCHKEY(id) ((id<<8)|0x00fd)
22 # else
23 # error "could not determine byte order"
24 # endif
25 #endif /* _LINUX_PATCHKEY_H */