LXR linux/include/uapi/linux/nvram.h

   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 */
  18