linux-kernel - RE: Function of the camera key on windows

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Date:   Tue, 25 Apr 2023 22:16:32 +0000
From:   "Limonciello, Mario" <Mario.Limonciello@....com>
To:     Jonathan Singer <jes965@....edu>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: Function of the camera key on windows

[Public]

> The key itself triggers a hardware response both on windows and linux.
> It disconnects power from the camera USB module and raises a cover in front
> of the camera aperature. The keycode is as far as I know only to notify the
> operating system in case it wanted to show a message.
> 
> Is that the kind of use case that would benefit from emitting a KEY_CAMERA?

In my opinion it is something that for example GNOME could pick up and display
an image with a camera with a line through it.  If it comes again it could toggle.

This is pretty similar to how mic mute works for example.  The way you describe it
I think of it as "Camera mute".