1 #ifndef _UAPI_LINUX_NVRAM_H 2 #define _UAPI_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 /* _UAPI_LINUX_NVRAM_H */ 17