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SubjectRe: [PATCH v11 1/4] HID: wacom_sys: Add support for flipping the data values
On Wed, Oct 20, 2021 at 11:05 AM Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
>
> On Wed, Oct 20, 2021 at 09:33:13AM +1000, Alistair Francis wrote:
> > On Tue, Oct 19, 2021 at 11:51 AM Dmitry Torokhov
> > <dmitry.torokhov@gmail.com> wrote:
> > >
> > > We already have touchscreen-inverted-x/y defined in
> > > Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml,
> > > why are they not sufficient?
> >
> > The touchscreen-* properties aren't applied to HID devices though, at
> > least not that I can tell.
>
> No, they are not currently, but that does not mean we need to establish
> a new set of properties (property names) for HID case.

I can update the names to use the existing touchscreen ones.

Do you have a hint of where this should be implemented though?

Right now (without "HID: wacom: Add support for the AG14 Wacom
device") the wacom touchscreen is just registered as a generic HID
device. I don't see any good place in hid-core, hid-input or
hid-generic to invert the input values for this.

Even with my "HID: wacom: Add support for the AG14 Wacom device" patch
I don't see a good way of doing this without the raw data parsing.

Alistair

>
> Thanks.

>
> --
> Dmitry

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