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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
607ca46e DH |
2 | #ifndef _UAPI_LINUX_NVRAM_H |
3 | #define _UAPI_LINUX_NVRAM_H | |
4 | ||
5 | #include <linux/ioctl.h> | |
6 | ||
7 | /* /dev/nvram ioctls */ | |
8 | #define NVRAM_INIT _IO('p', 0x40) /* initialize NVRAM and set checksum */ | |
9 | #define NVRAM_SETCKS _IO('p', 0x41) /* recalculate checksum */ | |
10 | ||
11 | /* for all current systems, this is where NVRAM starts */ | |
12 | #define NVRAM_FIRST_BYTE 14 | |
13 | /* all these functions expect an NVRAM offset, not an absolute */ | |
14 | #define NVRAM_OFFSET(x) ((x)-NVRAM_FIRST_BYTE) | |
15 | ||
16 | ||
17 | #endif /* _UAPI_LINUX_NVRAM_H */ |