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nvram.h (531B) - Raw

      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef _LINUX_NVRAM_H
      3 #define _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 /* _LINUX_NVRAM_H */