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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2009-09-12 15:22:15 -0300
committerLen Brown <len.brown@intel.com>2009-09-19 00:53:34 -0400
commit06777be6d8688ba93103fffbbe9e64a5e6fab3c8 (patch)
tree8b453eac2df9e5f73d96cea265a073755ae7abf7 /Documentation/laptops
parentdb25f16d1dcce8de12f2f5daf884cda02196b28c (diff)
thinkpad-acpi: deprecate hotkey_bios_mask
Some analysis of the ACPI DSDTs shows that the HKEY pre-enabled mask is always 0x80c (FN+F3,FN+F4 and FN+F12), which are the hotkeys that the second gen of HKEY firmware supported (the first gen didn't report any hotkeys, the second reported these tree hotkeys but had no mask support, and the third added mask support). So, this is probably some sort of backwards compatibility with older versions of the IBM ThinkVantage suite. We have no use for that, and I know of exactly ZERO users of that attribute, anyway. Start the process of getting rid of it. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/laptops')
-rw-r--r--Documentation/laptops/thinkpad-acpi.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index e2ddcdeb61b6..ab4b58eaa7f4 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -240,9 +240,13 @@ sysfs notes:
Returns 0.
hotkey_bios_mask:
+ DEPRECATED, DON'T USE, WILL BE REMOVED IN THE FUTURE.
+
Returns the hot keys mask when thinkpad-acpi was loaded.
Upon module unload, the hot keys mask will be restored
- to this value.
+ to this value. This is always 0x80c, because those are
+ the hotkeys that were supported by ancient firmware
+ without mask support.
hotkey_enable:
DEPRECATED, WILL BE REMOVED SOON.

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