[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>
diff --git a/include/linux/pmu.h b/include/linux/pmu.h
index ecce591..2ed807d 100644
--- a/include/linux/pmu.h
+++ b/include/linux/pmu.h
@@ -230,4 +230,8 @@
extern struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES];
extern unsigned int pmu_power_flags;
+/* Backlight */
+extern int disable_kernel_backlight;
+extern void pmu_backlight_init(struct device_node*);
+
#endif /* __KERNEL__ */