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nvram.h (532B)

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_NVRAM_H
#define _LINUX_NVRAM_H
#include <linux/ioctl.h>
/* /dev/nvram ioctls */
#define NVRAM_INIT	_IO('p', 0x40) /* initialize NVRAM and set checksum */
#define NVRAM_SETCKS	_IO('p', 0x41) /* recalculate checksum */
/* for all current systems, this is where NVRAM starts */
#define NVRAM_FIRST_BYTE    14
/* all these functions expect an NVRAM offset, not an absolute */
#define NVRAM_OFFSET(x)   ((x)-NVRAM_FIRST_BYTE)
#endif /* _LINUX_NVRAM_H */