Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Routines for handling backlight control on PowerBooks
3 *
4 * For now, implementation resides in arch/ppc/kernel/pmac_support.c
5 *
6 */
7#ifdef __KERNEL__
8#ifndef __ASM_PPC_BACKLIGHT_H
9#define __ASM_PPC_BACKLIGHT_H
10
11/* Abstract values */
12#define BACKLIGHT_OFF 0
13#define BACKLIGHT_MIN 1
14#define BACKLIGHT_MAX 0xf
15
16struct backlight_controller {
17 int (*set_enable)(int enable, int level, void *data);
18 int (*set_level)(int level, void *data);
19};
20
21extern void register_backlight_controller(struct backlight_controller *ctrler, void *data, char *type);
22extern void unregister_backlight_controller(struct backlight_controller *ctrler, void *data);
23
24extern int set_backlight_enable(int enable);
25extern int get_backlight_enable(void);
26extern int set_backlight_level(int level);
27extern int get_backlight_level(void);
28
29#endif
30#endif /* __KERNEL__ */