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[PATCH] Rewritten backlight infrastructure for portable Apple computers

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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>
This commit is contained in:
Michael Hanselmann
2006-06-25 05:47:08 -07:00
committed by Linus Torvalds
parent 17660bdd5c
commit 5474c120aa
26 changed files with 1534 additions and 716 deletions
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include/linux/pmu.h
+4
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@@ -230,4 +230,8 @@ extern int pmu_battery_count;
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__ */