1#ifndef _LINUX_NVRAM_H 2#define _LINUX_NVRAM_H 3 4#include <linux/ioctl.h> 5 6/* /dev/nvram ioctls */ 7#define NVRAM_INIT _IO('p', 0x40) /* initialize NVRAM and set checksum */ 8#define NVRAM_SETCKS _IO('p', 0x41) /* recalculate checksum */ 9 10/* for all current systems, this is where NVRAM starts */ 11#define NVRAM_FIRST_BYTE 14 12/* all these functions expect an NVRAM offset, not an absolute */ 13#define NVRAM_OFFSET(x) ((x)-NVRAM_FIRST_BYTE) 14 15 16#endif /* _LINUX_NVRAM_H */ 17