Re: [PATCH] Input: synaptics - add support for reporting x/y resolution

[Tero Saarni <tero.saarni@gmail.com>]

On Thu, May 7, 2009 at 19:49, Dmitry Torokhov <dmitry.torokhov@gmail.com> wrote:
>> +#define ABS_RESX                0x26
>> +#define ABS_RESY                0x27
>
> This data is not part of dynamic state of the device but rather
> describes it's physical characteristics and as such should not be
> transmitted as input events. We should consider extending input_absinfo
> and making this data available via EVIOCGABS ioctl but we need to be
> careful with keeping compatibility with existing clients.

Thanks for your reply!

What kind of extension do you mean?

Making it available via EVIOCGABS ioctl was my intention too but
extending by adding new ABS_nnn was the only obvious way I came up
with.  All the other similar uses of input_absinfo seem to describe
static limits of dynamic parameters (like max and min y coordinates)
so I agree that resolution is not a perfect fit into the group,  For
resolution I never need to call input_report_abs().

I'm very new to the area so please bear with me! :-)

-- 
Tero
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