linux-kernel - Re: [PATCH] HID: logitech-hidpp: add support for Unified Battery (1004) feature

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Message-ID: <0de99cc89a3cc0cc5b3818e10aefdd2eaddd8032.camel@hadess.net>
Date:   Wed, 06 Jan 2021 10:34:41 +0100
From:   Bastien Nocera <hadess@...ess.net>
To:     lains@...hlinux.org, Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: logitech-hidpp: add support for Unified Battery
 (1004) feature

On Mon, 2021-01-04 at 18:29 +0000, lains@...hlinux.org wrote:
> From: Filipe Laíns <lains@...hlinux.org>
> 
> This new feature present in new devices replaces the old Battery
> Level
> Status (0x1000) feature. It keeps essentially the same information
> for
> levels (reporting critical, low, good and full) but makes these
> levels
> optional, the device exports a capability setting which describes
> which
> levels it supports. In addition to this, there is an optional
> state_of_charge paramenter that exports the battery percentage.
> 
> This patch adds support for this new feature. There were some
> implementation choices, as described below and in the code.
> 
> If the device supports the state_of_charge parameter, we will just
> export the battery percentage and not the levels, which the device
> might
> still support.

I'm guessing that means no changes needed on the upower side?

Cheers