[PATCH] Rewritten backlight infrastructure for portable Apple computers

[deliverable/linux.git] / drivers / macintosh / Kconfig

diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index ccf5df44cde448bda54e3f83b689e76b23630264..37cd6ee4586b35b6110a5d948a5dd01d1bbd6031 100644 (file)
--- 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"