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platform/x86: Support for mode FN key

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New Thinkpads have added a 'Mode' Function key that on Windows allows
you to choose the active profile (low-power, balanced, performance)

Added suppoort for this hotkey (F8), and have it cycle through the
options available.

Tested on X1 Carbon G12.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240120232949.317337-1-mpearson-lenovo@squebb.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Mark Pearson
2024-01-20 18:29:34 -05:00
committed by Ilpo Järvinen
parent 2cee4d0c82
commit 0959afbafa
2 changed files with 25 additions and 2 deletions
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Documentation/admin-guide/laptops/thinkpad-acpi.rst
+6 -1
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@@ -444,7 +444,9 @@ event code Key Notes
0x1008 0x07 FN+F8 IBM: toggle screen expand
Lenovo: configure UltraNav,
or toggle screen expand
or toggle screen expand.
On newer platforms (2024+)
replaced by 0x131f (see below)
0x1009 0x08 FN+F9 -
@@ -504,6 +506,9 @@ event code Key Notes
0x1019 0x18 unknown
0x131f ... FN+F8 Platform Mode change.
Implemented in driver.
... ... ...
0x1020 0x1F unknown