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kernel/linux-imx6_3.14.28/include/uapi/linux/uuid.h 1.76 KB
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  /*
   * UUID/GUID definition
   *
   * Copyright (C) 2010, Intel Corp.
   *	Huang Ying <ying.huang@intel.com>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License version
   * 2 as published by the Free Software Foundation;
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  #ifndef _UAPI_LINUX_UUID_H_
  #define _UAPI_LINUX_UUID_H_
  
  #include <linux/types.h>
  #include <linux/string.h>
  
  typedef struct {
  	__u8 b[16];
  } uuid_le;
  
  typedef struct {
  	__u8 b[16];
  } uuid_be;
  
  #define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
  ((uuid_le)								\
  {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
     (b) & 0xff, ((b) >> 8) & 0xff,					\
     (c) & 0xff, ((c) >> 8) & 0xff,					\
     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
  
  #define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
  ((uuid_be)								\
  {{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
     ((b) >> 8) & 0xff, (b) & 0xff,					\
     ((c) >> 8) & 0xff, (c) & 0xff,					\
     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
  
  #define NULL_UUID_LE							\
  	UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
  		0x00, 0x00, 0x00, 0x00)
  
  #define NULL_UUID_BE							\
  	UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
  		0x00, 0x00, 0x00, 0x00)
  
  
  #endif /* _UAPI_LINUX_UUID_H_ */