nvram.h (547B)
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 */