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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI_LINUX_NVRAM_H3#define _UAPI_LINUX_NVRAM_H4 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 1413/* 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