patchkey.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:1k
- /*
- * <linux/patchkey.h> -- definition of _PATCHKEY macro
- *
- * Copyright (C) 2005 Stuart Brady
- *
- * This exists because awe_voice.h defined its own _PATCHKEY and it wasn't
- * clear whether removing this would break anything in userspace.
- *
- * Do not include this file directly. Please use <sys/soundcard.h> instead.
- * For kernel code, use <linux/soundcard.h>
- */
- #ifndef _LINUX_PATCHKEY_H_INDIRECT
- #error "patchkey.h included directly"
- #endif
- #ifndef _LINUX_PATCHKEY_H
- #define _LINUX_PATCHKEY_H
- /* Endian macros. */
- #ifdef __KERNEL__
- # include <asm/byteorder.h>
- #else
- # include <endian.h>
- #endif
- #if defined(__KERNEL__)
- # if defined(__BIG_ENDIAN)
- # define _PATCHKEY(id) (0xfd00|id)
- # elif defined(__LITTLE_ENDIAN)
- # define _PATCHKEY(id) ((id<<8)|0x00fd)
- # else
- # error "could not determine byte order"
- # endif
- #elif defined(__BYTE_ORDER)
- # if __BYTE_ORDER == __BIG_ENDIAN
- # define _PATCHKEY(id) (0xfd00|id)
- # elif __BYTE_ORDER == __LITTLE_ENDIAN
- # define _PATCHKEY(id) ((id<<8)|0x00fd)
- # else
- # error "could not determine byte order"
- # endif
- #endif
- #endif /* _LINUX_PATCHKEY_H */