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Commit 24f7ff0a authored by Stefan Schmidt's avatar Stefan Schmidt Committed by Len Brown
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ACPI: ibm_acpi: Update documentation for brightness and volume. 



Document the change of the experimental flag for brightness and volume.

Signed-off-by: default avatarStefan Schmidt <stefan@datenfreihafen.org>
Acked-by: default avatarBorislav Deianov <borislav@users.sourceforge.net>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 4d6bd5ea

Documentation/ibm-acpi.txt

+6 −16
Original line number Diff line number Diff line
@@ -30,8 +30,8 @@ detailed description): 
	- ACPI sounds

	- temperature sensors

	- Experimental: embedded controller register dump

	- Experimental: LCD brightness control

	- Experimental: volume control

	- LCD brightness control

	- Volume control

	- Experimental: fan speed, fan enable/disable



A compatibility table by model and feature is maintained on the web
@@ -523,13 +523,8 @@ registers contain the current battery capacity, etc. If you experiment 
with this, do send me your results (including some complete dumps with

a description of the conditions when they were taken.)



EXPERIMENTAL: LCD brightness control -- /proc/acpi/ibm/brightness

-----------------------------------------------------------------



This feature is marked EXPERIMENTAL because the implementation

directly accesses hardware registers and may not work as expected. USE

WITH CAUTION! To use this feature, you need to supply the

experimental=1 parameter when loading the module.

LCD brightness control -- /proc/acpi/ibm/brightness

---------------------------------------------------



This feature allows software control of the LCD brightness on ThinkPad

models which don't have a hardware brightness slider. The available
@@ -542,13 +537,8 @@ commands are: 
The <level> number range is 0 to 7, although not all of them may be

distinct. The current brightness level is shown in the file.



EXPERIMENTAL: Volume control -- /proc/acpi/ibm/volume

-----------------------------------------------------



This feature is marked EXPERIMENTAL because the implementation

directly accesses hardware registers and may not work as expected. USE

WITH CAUTION! To use this feature, you need to supply the

experimental=1 parameter when loading the module.

Volume control -- /proc/acpi/ibm/volume

---------------------------------------



This feature allows volume control on ThinkPad models which don't have

a hardware volume knob. The available commands are: