On Tue, Oct 9, 2012 at 11:32 AM, Olivier Fourdan <ofour...@redhat.com> wrote:
> Ping Cheng said the following on 10/09/2012 07:21 PM:
>>
>>
>> "builtin" == "tablet is integrated with the display" ==
>> INPUT_PROP_DIRECT (defined in the kernel)
>
> That's the other thread I started, indeed ("BuiltIn flag set automatically,
> but based on what?")

I replied before I read through the message. You have a valid point.

> Why is that different? 0x02 would be INPUT_PROP_BUTTONPAD according to
> linux/input.h
>
> Why would that need to match the kernel definitions? Would DIRECT be more
> explicit than e.g. INTEGRATED_WITH_DISPLAY?
>
> And what would be the kernel equivalent of ISD in terms of kernel then?

As Jason pointed out, kernel  INPUT_PROP_* is not enough to resolve
our integrated/DISPLAY/SYSTEM issue. We need to update the code for
it. And extra information is needed.

> What I found for kernel is:
>
>   http://permalink.gmane.org/gmane.linux.kernel.input/21661
>   http://comments.gmane.org/gmane.linux.kernel.input/23241
>
> But there's nothing about ISD (which is what the proposed patches are about
> actually), so I am not sure I understand the need to follow the kernel
> naming convention for libwacom.
>
> Corollary question, if ISD and screen tablet can be deduced from the device
> properties in kernel, why do we need to have those in the database?

Obviously there was a reason to have it in the database. We just
forgot the reason ;).

Ping

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