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authorMichael Hanselmann <linux-kernel@hansmi.ch>2006-06-25 16:47:08 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 21:00:59 +0400
commit5474c120aafe78ca54bf272f7a01107c42da2b21 (patch)
treec1b002a27703ce92c816bfb9844752186e33d403 /drivers/macintosh/Kconfig
parent17660bdd5c1f1a165273c1a59cb5b87670a81cc4 (diff)
downloadlinux-5474c120aafe78ca54bf272f7a01107c42da2b21.tar.xz
[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/macintosh/Kconfig')
-rw-r--r--drivers/macintosh/Kconfig19
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index ccf5df44cde4..37cd6ee4586b 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -99,17 +99,22 @@ config PMAC_MEDIABAY
devices are not fully supported in the bay as I never had one to
try with
-# made a separate option since backlight may end up beeing used
-# on non-powerbook machines (but only on PMU based ones AFAIK)
config PMAC_BACKLIGHT
bool "Backlight control for LCD screens"
depends on ADB_PMU && (BROKEN || !PPC64)
help
- Say Y here to build in code to manage the LCD backlight on a
- Macintosh PowerBook. With this code, the backlight will be turned
- on and off appropriately on power-management and lid-open/lid-closed
- events; also, the PowerBook button device will be enabled so you can
- change the screen brightness.
+ Say Y here to enable Macintosh specific extensions of the generic
+ backlight code. With this enabled, the brightness keys on older
+ PowerBooks will be enabled so you can change the screen brightness.
+ Newer models should use an userspace daemon like pbbuttonsd.
+
+config PMAC_BACKLIGHT_LEGACY
+ bool "Provide legacy ioctl's on /dev/pmu for the backlight"
+ depends on PMAC_BACKLIGHT && (BROKEN || !PPC64)
+ help
+ Say Y if you want to enable legacy ioctl's on /dev/pmu. This is for
+ programs which use this old interface. New and updated programs
+ should use the backlight classes in sysfs.
config ADB_MACIO
bool "Include MacIO (CHRP) ADB driver"