1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 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 */ 18
