diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc/backlight.h | |
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'include/asm-ppc/backlight.h')
| -rw-r--r-- | include/asm-ppc/backlight.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-ppc/backlight.h b/include/asm-ppc/backlight.h new file mode 100644 index 000000000000..3a1c3dede2a0 --- /dev/null +++ b/include/asm-ppc/backlight.h @@ -0,0 +1,30 @@ +/* + * 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__ */ |