Re: [PATCH] HID: logitech-hidpp: add support for the Powerplay mat/receiver

[Benjamin Tissoires]

On Tue, Jan 14, 2020 at 1:31 AM Filipe LaÃns <lains@xxxxxxxxxxxxx> wrote:
>
> On Sun, 2020-01-12 at 20:50 +0000, Filipe LaÃns wrote:
> > I also marked all lightspeed devices as HID++ compatible. As the
> > internal powerplay device does not have REPORT_TYPE_KEYBOARD or
> > REPORT_TYPE_KEYBOARD it was not being marked as HID++ compatible in
> > logi_hidpp_dev_conn_notif_equad.
>
> Actually I had another look at the code and I don't understand why we
> are manually setting |= HIDPP in
> logi_hidpp_dev_conn_notif_equad/logi_hidpp_dev_conn_notif_27mhz. We
> should set it in logi_dj_hidpp_event as it is triggered by receiving a
> HID++ packet.

long story short: nope :)

The whole purpose of setting the workitem->reports_supported is to be
able to create the matching report descriptor in the new virtual
device. So having this set in a callback will add an operation for
nothing every time we get an event, and will also not ensure a proper
separation of concerns.

Cheers,
Benjamin

>
> What do you think Benjamin?
>
> --
> Filipe LaÃns