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-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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