| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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| 2 | #ifndef _UAPI_LINUX_NVRAM_H |
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| 3 | #define _UAPI_LINUX_NVRAM_H |
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| 4 | |
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| 5 | #include <linux/ioctl.h> |
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| 6 | |
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| 7 | /* /dev/nvram ioctls */ |
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| 8 | #define NVRAM_INIT _IO('p', 0x40) /* initialize NVRAM and set checksum */ |
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| 9 | #define NVRAM_SETCKS _IO('p', 0x41) /* recalculate checksum */ |
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| 10 | |
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| 11 | /* for all current systems, this is where NVRAM starts */ |
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| 12 | #define NVRAM_FIRST_BYTE 14 |
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| 13 | /* all these functions expect an NVRAM offset, not an absolute */ |
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| 14 | #define NVRAM_OFFSET(x) ((x)-NVRAM_FIRST_BYTE) |
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| 15 | |
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| 16 | |
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| 17 | #endif /* _UAPI_LINUX_NVRAM_H */ |
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| 18 | |
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