linux-kernel - [PATCH 1/2] Input: allocate keycode for Fn + R

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Date: Tue, 20 Feb 2024 04:39:35 +0100
From: Gergo Koteles <soyer@....hu>
To: Ike Panhc <ike.pan@...onical.com>,
  Hans de Goede <hdegoede@...hat.com>,
  Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
  Dmitry Torokhov <dmitry.torokhov@...il.com>,
  Philipp Jungkamp <p.jungkamp@....net>
Cc: platform-driver-x86@...r.kernel.org,
  linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
  Gergo Koteles <soyer@....hu>
Subject: [PATCH 1/2] Input: allocate keycode for Fn + R

Newer Lenovo Yogas and Legions with 60Hz/90Hz displays send a wmi event
when Fn + R is pressed. This is intended for use to adjust refresh rate.

But there is no silkscreen print on the R key to indicate this,
so add a KEY_FN_R keycode define to use for this key-combo.

Signed-off-by: Gergo Koteles <soyer@....hu>
---
 include/uapi/linux/input-event-codes.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 022a520e31fc..ba40af25943a 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -547,6 +547,7 @@
 #define KEY_FN_S		0x1e3
 #define KEY_FN_B		0x1e4
 #define KEY_FN_RIGHT_SHIFT	0x1e5
+#define KEY_FN_R		0x1e6
 
 #define KEY_BRL_DOT1		0x1f1
 #define KEY_BRL_DOT2		0x1f2
-- 
2.43.2