[linux-block.git] / include / uapi / linux / nvram.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_NVRAM_H
#define _UAPI_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 /* _UAPI_LINUX_NVRAM_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
607ca46e DH	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 */