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