1 #ifndef _UAPI_LINUX_NVRAM_H
2 #define _UAPI_LINUX_NVRAM_H
4 #include <linux/ioctl.h>
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 */
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)
16 #endif /* _UAPI_LINUX_NVRAM_H */