Thread (8 messages) 8 messages, 2 authors, 2009-06-02

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

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2009-05-07 16:49:07

Hi Tero,

On Mon, May 04, 2009 at 09:19:05PM +0300, Tero Saarni wrote:
Synaptics uses anisotropic coordinate system.  On wide touchpads
vertical coordinate resolution can be twice as high as horizontal
leading to unequal sensitivity.  Make x and y coordinate resolution
available so that differences can be compensated.
Thank you for the patch.
+#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.

-- 
Dmitry
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