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libinput-m...-touch-size(1) General Commands Manuallibinput-m...-touch-size(1)

NAME
       libinput-measure-touch-size - measure touch size	and orientation	of de-
       vices

SYNOPSIS
       libinput	measure	touch-size [--help] [options] [/dev/input/event0]

DESCRIPTION
       The  libinput measure touch-size	tool measures the size and orientation
       of a touch as provided by the kernel.  This  is	an  interactive	 tool.
       When executed, the tool will prompt the user to interact	with the touch
       device.	On  termination, the tool prints a summary of the values seen.
       This data should	be attached to any touch-size-related bug report.

       This is a debugging tool	only, its output may change at	any  time.  Do
       not rely	on the output.

       This  tool  usually  needs  to  be  run	as  root to have access	to the
       /dev/input/eventX nodes.

OPTIONS
       If a device node	is given, this tool opens that device node. Otherwise,
       this tool searches for the first	node that looks	like  a	 touch-capable
       device and uses that node.

       --help  Print help

       --touch-thresholds="down:up"
	       Set  the	 logical touch size thresholds to down and up, respec-
	       tively. When a touch exceeds the	size in	down it	is  considered
	       logically down. If a touch is logically down and	goes below the
	       size  in	up, it is considered logically up. The thresholds have
	       to be in	device-specific	pressure values	 and  it  is  required
	       that down >= up.

       --palm-threshold=N
	       Assume  a  palm threshold of N.	The threshold has to be	in de-
	       vice-specific pressure values.

       If the touch-thresholds or the palm-threshold are  not  provided,  this
       tool  uses the thresholds provided by the device	quirks (if any)	or the
       built-in	defaults.

LIBINPUT
       Part of the libinput(1) suite

						   libinput-m...-touch-size(1)

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