linux-kernel - [PATCH v2] HID: Add mapping for KEY

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Message-Id: <20220218015136.1.I5dbf50eb1a7a6734ee727bda4a8573358c6d3ec0@changeid>
Date:   Fri, 18 Feb 2022 01:51:45 +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 v2] HID: Add mapping for KEY_DICTATE

Numerous keyboards are adding dictate keys which allows for text
messages to be dicated by a microphone.

This patch adds a new key definition KEY_DICTATE and maps 0x0c/0x0d8
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                | 1 +
 include/uapi/linux/input-event-codes.h | 2 ++
 3 files changed, 4 insertions(+)

diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 26c31d759914..8aa68416b1d7 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -969,6 +969,7 @@ static const char *keys[KEY_MAX + 1] = {
 	[KEY_ASSISTANT] = "Assistant",
 	[KEY_KBD_LAYOUT_NEXT] = "KbdLayoutNext",
 	[KEY_EMOJI_PICKER] = "EmojiPicker",
+	[KEY_DICTATE] = "Dictate",
 	[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 112901d2d8d2..ce2b75a67cb8 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -992,6 +992,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		case 0x0cd: map_key_clear(KEY_PLAYPAUSE);	break;
 		case 0x0cf: map_key_clear(KEY_VOICECOMMAND);	break;
 
+		case 0x0d8: map_key_clear(KEY_DICTATE);		break;
 		case 0x0d9: map_key_clear(KEY_EMOJI_PICKER);	break;
 
 		case 0x0e0: map_abs_clear(ABS_VOLUME);		break;
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 225ec87d4f22..9aa994cbcd60 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -660,6 +660,8 @@
 /* Select an area of screen to be copied */
 #define KEY_SELECTIVE_SCREENSHOT	0x27a
 
+#define KEY_DICTATE			0x27b
+
 /*
  * Some keyboards have keys which do not have a defined meaning, these keys
  * are intended to be programmed / bound to macros by the user. For most
-- 
2.35.1.473.g83b2b277ed-goog