1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
5 #include <linux/ioctl.h>
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 */
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)
17 #endif /* _LINUX_NVRAM_H */