linux/include/asm-ppc/backlight.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

30 lines
842 B
C

/*
* Routines for handling backlight control on PowerBooks
*
* For now, implementation resides in arch/ppc/kernel/pmac_support.c
*
*/
#ifdef __KERNEL__
#ifndef __ASM_PPC_BACKLIGHT_H
#define __ASM_PPC_BACKLIGHT_H
/* Abstract values */
#define BACKLIGHT_OFF 0
#define BACKLIGHT_MIN 1
#define BACKLIGHT_MAX 0xf
struct backlight_controller {
int (*set_enable)(int enable, int level, void *data);
int (*set_level)(int level, void *data);
};
extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type);
extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data);
extern int set_backlight_enable(int enable);
extern int get_backlight_enable(void);
extern int set_backlight_level(int level);
extern int get_backlight_level(void);
#endif
#endif /* __KERNEL__ */