/* * BK Id: SCCS/s.backlight.h 1.5 05/17/01 18:14:24 cort *//* * 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	0xfstruct 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__ */