blob: 9189829c131c3051a0b3087b1d1596dcfa292954 [file] [log] [blame]
#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 */
/* all these functions expect an NVRAM offset, not an absolute */
#ifdef __KERNEL__
/* __foo is foo without grabbing the rtc_lock - get it yourself */
extern unsigned char __nvram_read_byte(int i);
extern unsigned char nvram_read_byte(int i);
extern void __nvram_write_byte(unsigned char c, int i);
extern void nvram_write_byte(unsigned char c, int i);
extern int __nvram_check_checksum(void);
extern int nvram_check_checksum(void);
#endif /* _LINUX_NVRAM_H */