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Date:   Thu, 17 Feb 2022 11:07:40 -0800
From:   Harry Cutts <hcutts@...omium.org>
To:     William Mahon <wmahon@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        William Mahon <wmahon@...gle.com>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jiri Kosina <jikos@...nel.org>,
        linux-input <linux-input@...r.kernel.org>
Subject: Re: [PATCH] HID: Add mapping for KEY_DICTATE

Hi Will,

On Wed, 16 Feb 2022 at 20:15, William Mahon <wmahon@...omium.org> wrote:
>
> Numerous keyboards are adding dicate keys which allows for text
> messages to be dicated by a microphone.

Nit: a couple of typos for "dictate".

>
> 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..0c6c6db942ca 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..12246594891c 100644
> --- a/include/uapi/linux/input-event-codes.h
> +++ b/include/uapi/linux/input-event-codes.h
> @@ -735,6 +735,8 @@
>  #define KEY_KBD_LCD_MENU4              0x2bb
>  #define KEY_KBD_LCD_MENU5              0x2bc
>
> +#define KEY_DICTATE                    0x27b
> +

The list should be sorted in order of evdev code, so KEY_DICTATE
should go just below KEY_SELECTIVE_SCREENSHOT.

>  #define BTN_TRIGGER_HAPPY              0x2c0
>  #define BTN_TRIGGER_HAPPY1             0x2c0
>  #define BTN_TRIGGER_HAPPY2             0x2c1
> --
> 2.35.1.265.g69c8d7142f-goog
>

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