linux-kernel - [PATCH] HID: Add mapping for KEY_APP

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Message-Id: <20220217053354.1.I3a7746ad05d270161a18334ae06e3b6db1a1d339@changeid>
Date:   Thu, 17 Feb 2022 05:33:57 +0000
From:   William Mahon <wmahon@...omium.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     William Mahon <wmahon@...gle.com>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jiri Kosina <jikos@...nel.org>, linux-input@...r.kernel.org
Subject: [PATCH] HID: Add mapping for KEY_APP_LAUNCHER

The App Launcher key is used to bring up the Launcher menu.

This patch adds a new key definition KEY_APP_LAUNCHER and maps 0x0c02a28
usage code to this new keycode. Additionally hid-debug is adjusted to
recognize this new usage code as well.

Signed-off-by: William Mahon <wmahon@...gle.com>
---

 drivers/hid/hid-debug.c                | 1 +
 drivers/hid/hid-input.c                | 2 ++
 include/uapi/linux/input-event-codes.h | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 01135713e8f9..36a42ad3b7bc 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -930,6 +930,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_SCREENSAVER] = "ScreenSaver",
 	[KEY_VOICECOMMAND] = "VoiceCommand",
 	[KEY_EMOJI_PICKER] = "EmojiPicker",
+	[KEY_APP_LAUNCHER] = "AppLauncher",
 	[KEY_BRIGHTNESS_MIN] = "BrightnessMin",
 	[KEY_BRIGHTNESS_MAX] = "BrightnessMax",
 	[KEY_BRIGHTNESS_AUTO] = "BrightnessAuto",
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index eccd89b5ea9f..7c89260826b2 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1162,6 +1162,8 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 
 		case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT);	break;
 
+		case 0x2a2: map_key_clear(KEY_APP_LAUNCHER);	break;
+
 		case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV);		break;
 		case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT);		break;
 		case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP);		break;
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 311a57f3e01a..fdf43cf14125 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -651,6 +651,8 @@
 #define KEY_DATA			0x277
 #define KEY_ONSCREEN_KEYBOARD		0x278
 
+#define KEY_APP_LAUNCHER		0x27c
+
 #define BTN_TRIGGER_HAPPY		0x2c0
 #define BTN_TRIGGER_HAPPY1		0x2c0
 #define BTN_TRIGGER_HAPPY2		0x2c1
-- 
2.35.1.265.g69c8d7142f-goog