[PATCH 0/3] Improve touchscreen filters
nelsoneci at gmail.com
Mon Dec 8 20:30:33 CET 2008
On Mon, Dec 08, 2008 at 07:14:20PM +0000, Andy Green wrote:
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> Somebody in the thread at some point said:
> | My current ts.conf file is:
> | module_raw input grab_events=1
> | module linear
I noticed we need "module pthres pmin=1".
Without it tslib sends a few weird points to X (the last ones).
How do I make Xglamo read from /dev/input/touchscreen0 ?
(I read I can provide a XF86Config)
Where can I look?
> | We could add the following sysfs entries.
> | /sys/class/touchscreen/calN ..
> | or
> | /sys/class/input/touchscreen0/calN ..
> | (I have to read more about the naming conventions, any hint
> | will be appreciated).
> Maybe you should create it as a child of the touchscreen device /sys,
> then symlink it to /sys/class/input/touchscreen0/calN or something along
> those lines?
> | * Add default calibration values that do not change the output
> | of the touchscreen.
> I don't know what the spread of touchscreen results look like in bulk,
> but I guess it varies enough the touchscreen can't really be relied on
> for much without individually customized calibration, so you might as
> well leave it alone by default.
It makes sense to leave the output untouched by default.
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