/usr/arm-linux-gnueabi/include/linux/nvram.h is in linux-libc-dev-armel-cross 4.4.0-18.34cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | #ifndef _LINUX_NVRAM_H
#define _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 /* _LINUX_NVRAM_H */
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