diff options
| author | Michael Hanselmann <linux-kernel@hansmi.ch> | 2006-06-25 05:47:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:00:59 -0700 |
| commit | 5474c120aafe78ca54bf272f7a01107c42da2b21 (patch) | |
| tree | c1b002a27703ce92c816bfb9844752186e33d403 /drivers/video/aty/radeonfb.h | |
| parent | 17660bdd5c1f1a165273c1a59cb5b87670a81cc4 (diff) | |
[PATCH] Rewritten backlight infrastructure for portable Apple computers
This patch contains a total rewrite of the backlight infrastructure for
portable Apple computers. Backward compatibility is retained. A sysfs
interface allows userland to control the brightness with more steps than
before. Userland is allowed to upload a brightness curve for different
monitors, similar to Mac OS X.
[akpm@osdl.org: add needed exports]
Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/aty/radeonfb.h')
| -rw-r--r-- | drivers/video/aty/radeonfb.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h index 217e00ab4a2d..1645943b1123 100644 --- a/drivers/video/aty/radeonfb.h +++ b/drivers/video/aty/radeonfb.h @@ -625,4 +625,13 @@ extern int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_ extern void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode, int reg_only); +/* Backlight functions */ +#ifdef CONFIG_FB_RADEON_BACKLIGHT +extern void radeonfb_bl_init(struct radeonfb_info *rinfo); +extern void radeonfb_bl_exit(struct radeonfb_info *rinfo); +#else +static inline void radeonfb_bl_init(struct radeonfb_info *rinfo) {} +static inline void radeonfb_bl_exit(struct radeonfb_info *rinfo) {} +#endif + #endif /* __RADEONFB_H__ */ |