linux-kernel - Re: [BUG] Kernel log flooded by message "logitech-djreceiver 0003:046D:C53A.000C: logi_dj_hidpp

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Date:   Wed, 12 Feb 2020 13:09:22 +0000
From:   Filipe Laíns <lains@...hlinux.org>
To:     Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
Cc:     Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        linux-input@...r.kernel.org
Subject: Re: [BUG] Kernel log flooded by message "logitech-djreceiver
 0003:046D:C53A.000C: logi_dj_hidpp_event: invalid device index:7"

On Wed, 2020-02-12 at 17:53 +0500, Mikhail Gavrilov wrote:
> On Mon, 10 Feb 2020 at 17:38, Filipe Laíns <lains@...hlinux.org>
> wrote:
> > On Mon, 2020-02-10 at 13:21 +0500, Mikhail Gavrilov wrote:
> > > Kernel log flooded by message
> > > logitech-djreceiver 0003:046D:C53A.000C: logi_dj_hidpp_event:
> > > invalid
> > > device index:7
> > > This happens when the mouse is idle.
> > > And it started since I begin using the mouse pad with Power Play
> > > technology.
> > > 
> > > 
> > > Kernel ver: 5.6 pre RC
> > > --
> > > Best Regards,
> > > Mike Gavrilov.
> > 
> > Hello Mike,
> > 
> > Yes, the Powerplay mat exports a static HID++ 2.0 device with index
> > 7
> > to configure the led on the mat. The current code expects devices
> > to
> > have a maximum index of 6, which is the maximum index of pairable
> > devices.
> > 
> > I already submitted a patch adding support for the Logitech G
> > Powerplay
> > mat but it wasn't been upstreamed it. I will attach it in case you
> > want
> > to try it.
> > 
> 
> Thanks, I tested the patch for a day and "logitech-djreceiver"
> messages was not appear anymore and no other regressions are noted.
> Why this patch wasn't been upstreamed?

Lack of time I guess.

> Also would be good if "logitech-djreceiver" provides information for
> upower daemon as how did it happening with unifying receiver and my
> previous mouse Logitech Zone Touch Mouse T400.
> 
> For example:
> 
> $ upower --dump
> Device: /org/freedesktop/UPower/devices/mouse_hidpp_battery_0
>   native-path:          hidpp_battery_0
>   model:                Zone Touch Mouse T400
>   serial:               4026-cf-15-61-0d
>   power supply:         no
>   updated:              Sun 22 Dec 2019 02:41:30 PM +05 (89 seconds
> ago)
>   has history:          yes
>   has statistics:       yes
>   mouse
>     present:             yes
>     rechargeable:        yes
>     state:               discharging
>     warning-level:       none
>     battery-level:       normal
>     percentage:          55% (should be ignored)
>     icon-name:          'battery-low-symbolic'
> 
> Device: /org/freedesktop/UPower/devices/DisplayDevice
>   power supply:         no
>   updated:              Sun 22 Dec 2019 10:58:54 AM +05 (13445
> seconds ago)
>   has history:          no
>   has statistics:       no
>   unknown
>     warning-level:       none
>     icon-name:          'battery-missing-symbolic'
> 
> Daemon:
>   daemon-version:  0.99.11
>   on-battery:      no
>   lid-is-closed:   no
>   lid-is-present:  no
>   critical-action: HybridSleep
> 
> https://user-images.githubusercontent.com/200750/71320201-d8a5ea80-24c9-11ea-9ea9-97100545d294.png
> 
> Currently, only sensors show the power charge level, but without
> "upower" daemon user-friendly indication not available in DE.
> 
> $ sensors
> hidpp_battery_0-hid-3-9
> Adapter: HID adapter
> in0:           4.08 V

The new devices only export the battery voltage. We will need to
calculate the charge level with the charging curve. I tried getting in
touch with the upower upstream to figure out exactly what is needed in
upower's side but without luck.

https://gitlab.freedesktop.org/upower/upower/issues/110

Regards,
Filipe Laíns

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