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