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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[mirror_ubuntu-bionic-kernel.git] / include / uapi / linux / nvram.h
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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 */