jscal

--help

pi@BlackTiger:/dev/input $ jscal -h
Usage: jscal <device>
-c --calibrate Calibrate the joystick -h --help Display this help -s <x,y,z...> --set-correction Sets correction to specified values -t --test-center Tests if joystick is corectly calibrated returns 0 on success, see the jscal manpage for error values -V --version Prints the version numbers -p --print-correction Prints the current settings as a jscal command line -q --print-mappings Print the current axis and button mappings as a jscal command line -u <n_of_axes,axmap1,axmap2,..., n_of_buttons,btnmap1,btnmap2, ...> --set-mappings Sets axis and button mappings to the specified values

No args Just device

pi@BlackTiger:/dev/input $ jscal js0Joystick has 7 axes and 12 buttons.Correction for axis 0 is broken line, precision is 0.Coeficients are: 112, 142, 5534751, 5534751Correction for axis 1 is broken line, precision is 0.Coeficients are: 112, 142, 5534751, 5534751Correction for axis 2 is broken line, precision is 0.Coeficients are: 112, 142, 5534751, 5534751Correction for axis 3 is broken line, precision is 0.Coeficients are: 112, 142, 5534751, 5534751Correction for axis 4 is broken line, precision is 0.Coeficients are: 112, 142, 5534751, 5534751Correction for axis 5 is broken line, precision is 0.Coeficients are: 0, 0, 536870912, 536870912Correction for axis 6 is broken line, precision is 0.Coeficients are: 0, 0, 536870912, 536870912

--version

pi@BlackTiger:/dev/input $ jscal js0 --versionJsCal was compiled for driver version: 2.1.0Current running driver version: 2.1.0

-- print mappings

pi@BlackTiger:/dev/input $ jscal js0 -qjscal -u 7,0,1,2,3,5,16,17,12,288,289,290,291,292,293,294,295,296,297,298,299 js0
7is # of Axis
0,1,2,3,5,16,17,7 Axis #'s we need to swap 0,1 so we would right 1,0,2,3,4,16,17 (Don't care about remaining axis)
12 is # of buttons (Not remapping these now so can leave as zero)
12 Button #'s288,289,290,291,292,293,294,295,296,297,298,299

--print correction

pi@BlackTiger:/dev/input $ jscal js0 -p
jscal -s 7,1,0,112,142,5534751,5534751,1,0,112,142,5534751,5534751,1,0,112,142,5534751,5534751,1,0,112,142,5534751,5534751,1,0,112,142,5534751,5534751,1,0,0,0,536870912,536870912,1,0,0,0,536870912,536870912 js0

Returns a jscal -s command line

Sets correction to specified values. For each axis, specify the correction type (0 for none, 1 for "broken line"), the precision, and if necessary the correction coefficients ("broken line" corrections take four coefficients).

7 Again is the # of Axis.

1,0,112,142,5534751,5534751,
The 1 means Broken Line0 is precision112,142,5534751,5534751,Correction Coefficients