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ACPI: toshiba_acpi: Add support for the generic backlight device

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Add support for the generic backlight interface below /sys/class/backlight.
Keep the procfs brightness handling for backward compatibility.

To achive this, add two generic functions get_lcd and set_lcd
to be used both by the procfs related and the sysfs related methods.

[apw@shadowen.org: backlight users need to select BACKLIGHT_CLASS_DEVICE]

Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Holger Macht
2006-10-20 14:30:29 -07:00
committed by Len Brown
parent 2039a6eb72
commit c926355724
2 changed files with 66 additions and 23 deletions
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drivers/acpi/Kconfig
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@@ -227,6 +227,7 @@ config ACPI_IBM_DOCK
config ACPI_TOSHIBA
tristate "Toshiba Laptop Extras"
depends on X86
select BACKLIGHT_CLASS_DEVICE
---help---
This driver adds support for access to certain system settings
on "legacy free" Toshiba laptops. These laptops can be recognized by