root/include/uapi/linux/nvram.h

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INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_LINUX_NVRAM_H
   3 #define _UAPI_LINUX_NVRAM_H
   4 
   5 #include <linux/ioctl.h>
   6 
   7 /* /dev/nvram ioctls */
   8 #define NVRAM_INIT      _IO('p', 0x40) /* initialize NVRAM and set checksum */
   9 #define NVRAM_SETCKS    _IO('p', 0x41) /* recalculate checksum */
  10 
  11 /* for all current systems, this is where NVRAM starts */
  12 #define NVRAM_FIRST_BYTE    14
  13 /* all these functions expect an NVRAM offset, not an absolute */
  14 #define NVRAM_OFFSET(x)   ((x)-NVRAM_FIRST_BYTE)
  15 
  16 
  17 #endif /* _UAPI_LINUX_NVRAM_H */
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