linux-kernel - Re: [PATCH] HID: logitech-dj: add new lightspeed receiver id

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Date:   Tue, 15 Feb 2022 10:00:42 +0100
From:   Nestor Lopez Casado <nlopezcasad@...itech.com>
To:     Filipe Laíns <lains@...eup.net>
Cc:     Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Lucas Zampieri <lzampier@...hat.com>,
        Jiri Kosina <jikos@...nel.org>,
        "open list:HID CORE LAYER" <linux-input@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] HID: logitech-dj: add new lightspeed receiver id

On Wed, Jan 26, 2022 at 3:55 PM Filipe Laíns <lains@...eup.net> wrote:
>
> On Wed, 2022-01-26 at 15:47 +0100, Benjamin Tissoires wrote:
> > On Wed, Jan 26, 2022 at 3:44 PM Lucas Zampieri <lzampier@...hat.com> wrote:
> > >
> > > As of logitech lightspeed receiver fw version 04.02.B0009,
> > > HIDPP_PARAM_DEVICE_INFO is being reported as 0x11.
> > >
> > > With patch "HID: logitech-dj: add support for the new lightspeed receiver
> > > iteration", the mouse starts to error out with:
> > >   logitech-djreceiver: unusable device of type UNKNOWN (0x011) connected on
> > >   slot 1
> > > and becomes unusable.
> > >
> > > This has been noticed on a Logitech G Pro X Superlight fw MPM 25.01.B0018.
> >
> > The patch looks good to me.
> >
> > Reviewed-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> >
> > Ideally, Nestor, can you confirm this is expected and that we won't
> > have any bad surprises there?
Yes, I confirm this matches our specifications, this is an iteration
of Lightspeed 1.2
No objections on my side.

> >
> > I think we probably want this to be Cc-ed to stable once it gets
> > merged (we can add the tag as we merge it).
> >
> > Cheers,
> > Benjamin
>
> This is likely a different connection type, so it should probably get its own
> case statement, but let's let Nestor confirm :)
>
> Cheers,
> Filipe Laíns
best,
-nestor