Right, Robert.

I tested it and it works to solve the problem I reported.

On Mon, Jul 30, 2018 at 10:05 AM Robert Munteanu <[email protected]> wrote:

> Hi John,
>
> On Sat, 2018-07-28 at 15:53 -0400, John S Gruber wrote:
> > The Redragon keyboard uses the second device being presented, but
> > other
> > devices with the same vendor_id/device_id pair (0x0c45:760b) use the
> > first.
> > Don't cause its deletion. Problem introduced in commit 85455dd906d5
> > ("HID: redragon: Fix modifier keys for Redragon Asura Keyboard")
> >
> > Fixes: 85455dd906d5
> > Signed-off-by: John S Gruber <[email protected]>
> > ---
> >  drivers/hid/hid-redragon.c | 4 ----
> >  1 file changed, 4 deletions(-)
> >
> > diff --git a/drivers/hid/hid-redragon.c b/drivers/hid/hid-redragon.c
> > index daf5957..85a5fbb 100644
> > --- a/drivers/hid/hid-redragon.c
> > +++ b/drivers/hid/hid-redragon.c
> > @@ -55,10 +55,6 @@ static int redragon_probe(struct hid_device *dev,
> >               return ret;
> >       }
> >
> > -     /* do not register unused input device */
> > -     if (dev->maxapplication == 1)
> > -             return 0;
> > -
> >       ret = hid_hw_start(dev, HID_CONNECT_DEFAULT);
> >       if (ret) {
> >               hid_err(dev, "hw start failed\n");
>
> As I mentioned, this is already fixed by
> dc9b8e85ed95cbe7e3ad0eabb5b48d617bbc365e, scheduled for 4.19, and I
> suggest that we instead add that one to 4.18.
>
> The explanation is that the block you deleted was the whole reason for
> adding the redragon_probe function, so the changes are largely
> equivalent.
>
> Thanks,
>
> Robert
>
>

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