linux-kernel - Re: [PATCH v5 2/4] Input: joystick: xpad: Add ABS

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Date:   Thu, 8 Sep 2022 10:36:55 -0700
From:   Nate Yocom <nate@...om.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Bastien Nocera <hadess@...ess.net>, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org, benjamin.tissoires@...hat.com
Subject: Re: [PATCH v5 2/4] Input: joystick: xpad: Add ABS_PROFILE axis value
 to uapi

On Wed, Sep 07, 2022 at 10:36:35PM -0700, Dmitry Torokhov wrote:
> On Wed, Sep 07, 2022 at 05:41:08PM +0200, Bastien Nocera wrote:
> > On Mon, 2022-08-29 at 12:07 -0700, Nate Yocom wrote:
> > > On Sat, Aug 27, 2022 at 12:40:46PM +0200, Bastien Nocera wrote:
> > > > On Thu, 2022-08-25 at 15:24 -0700, Nate Yocom wrote:
> > > > > Add an ABS_PROFILE axis for input devices which need it, e.g. X-
> > > > > Box
> > > > > Adaptive Controller and X-Box Elite 2.
> > > > > ---
> > > > >  include/uapi/linux/input-event-codes.h | 1 +
> > > > >  1 file changed, 1 insertion(+)
> > > > > 
> > > > > diff --git a/include/uapi/linux/input-event-codes.h
> > > > > b/include/uapi/linux/input-event-codes.h
> > > > > index dff8e7f17074..7ad931a32970 100644
> > > > > --- a/include/uapi/linux/input-event-codes.h
> > > > > +++ b/include/uapi/linux/input-event-codes.h
> > > > > @@ -862,6 +862,7 @@
> > > > >  #define ABS_TOOL_WIDTH         0x1c
> > > > >  
> > > > >  #define ABS_VOLUME             0x20
> > > > > +#define ABS_PROFILE            0x21
> > > > >  
> > > > >  #define ABS_MISC               0x28
> > > > >  
> > > > 
> > > > 
> > > > You probably also want to add it to the absolutes array in
> > > > drivers/hid/hid-debug.c.
> > > 
> > > doh, roger.
> > > 
> > > > Again, you might want to wait for confirmation from Dmitry that
> > > > this is
> > > > the right way to do this for the profiles.
> > > 
> > > Makes sense.  Dmitry?
> > 
> > Dmitry, could you please confirm whether ABS_PROFILE definition is
> > correct?
> 
> Yes, I think this makes sense. Do we have a buy in from userspace folks
> (Peter H, etc) for this?
> 
> I'd like some documentation added to Documentation/input/event-codes.rst
> and potentially to Documentation/input/gamepad.rst even though profile
> does not have to be gamepad specific event.
> 

Will do, v6 incoming shortly.