diff options
Diffstat (limited to 'include/uapi/linux/nvram.h')
| -rw-r--r-- | include/uapi/linux/nvram.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/uapi/linux/nvram.h b/include/uapi/linux/nvram.h new file mode 100644 index 00000000000..0986c433738 --- /dev/null +++ b/include/uapi/linux/nvram.h @@ -0,0 +1,16 @@ +#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 */ |