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Bug 2303 - Uncalibrated values for Logitech Wingman Formula Force GP Wheel axes are used after calibration
Summary: Uncalibrated values for Logitech Wingman Formula Force GP Wheel axes are used...
Status: RESOLVED DUPLICATE of bug 2353
Alias: None
Product: SDL
Classification: Unclassified
Component: joystick (show other bugs)
Version: HG 2.1
Hardware: x86_64 Linux
: P2 normal
Assignee: Ryan C. Gordon
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-12-14 00:31 UTC by Toby Haynes
Modified: 2014-03-22 19:14 UTC (History)
1 user (show)

See Also:

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Description Toby Haynes 2013-12-14 00:31:17 UTC 
Here's the uncalibrated, just plugged in extremes for axes 0 (wheel) and 1 (throttle/brake) as reported by jstest.

toby@toby-desktop:~/progs/git/SDL2/test$ jstest /dev/input/by-id/usb-Logitech_Inc._WingMan_Formula_Force_GP-joystick 
Driver version is 2.1.0.
Joystick (Logitech Inc. WingMan Formula Force GP) has 2 axes (X, Y)
and 6 buttons (Trigger, ThumbBtn, ThumbBtn2, TopBtn, TopBtn2, PinkieBtn).
Testing ... (interrupt to exit)
Axes:  0:-14810  1:-20945 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0:-14810  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0:-14810  1: 25336 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0:-32767  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0: 32001  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0:     0  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 

This is the equivalent output from testjoystick from a recent git clone.

toby@toby-desktop:~/progs/git/SDL2/test$ ./testjoystick 0 
Checking /dev/input/event19
There are 1 joysticks attached
Joystick 0: Logitech Inc. WingMan Formula Force GP
Joystick has button: 0x120
Joystick has button: 0x121
Joystick has button: 0x122
Joystick has button: 0x123
Joystick has button: 0x124
Joystick has button: 0x125
Joystick has absolute axis: 0
Values = { 511, 0, 1023, 3, 63 }
Joystick has absolute axis: 1
Values = { 131, 0, 255, 0, 15 }
Joystick : Re-read Axis 0 (0) val= 0
Joystick : Re-read Axis 1 (1) val= 0
       axes: 2
      balls: 0
       hats: 0
    buttons: 6
instance id: 0
       guid: 030000006d04000093c2000000010000
Joystick has button: 0x120
Joystick has button: 0x121
Joystick has button: 0x122
Joystick has button: 0x123
Joystick has button: 0x124
Joystick has button: 0x125
Joystick has absolute axis: 0
Values = { 511, 0, 1023, 3, 63 }
Joystick has absolute axis: 1
Values = { 131, 0, 255, 0, 15 }
Joystick : Re-read Axis 0 (0) val= 0
Joystick : Re-read Axis 1 (1) val= 0
Watching joystick 0: (Logitech Inc. WingMan Formula Force GP)
Joystick has 2 axes, 0 hats, 0 balls, and 6 buttons
Joystick 0 axis 1 value: -505
Joystick 0 axis 1 value: -2521
Joystick 0 axis 1 value: -5546
Joystick 0 axis 1 value: -9915
Joystick 0 axis 1 value: -13612
Joystick 0 axis 1 value: -16973
Joystick 0 axis 1 value: -21006
Joystick 0 axis 1 value: -21342
Joystick 0 axis 1 value: -21678
Joystick 0 axis 1 value: -21006
Joystick 0 axis 1 value: -17981
Joystick 0 axis 1 value: -14956
Joystick 0 axis 1 value: -11259
Joystick 0 axis 1 value: -6554
Joystick 0 axis 1 value: -1513
Joystick 0 axis 1 value: 0
Joystick 0 axis 1 value: 2520
Joystick 0 axis 1 value: 5881
Joystick 0 axis 1 value: 8570
Joystick 0 axis 1 value: 10922
Joystick 0 axis 1 value: 14619
Joystick 0 axis 1 value: 18316
Joystick 0 axis 1 value: 21677
Joystick 0 axis 1 value: 25374
Joystick 0 axis 1 value: 25710
Joystick 0 axis 1 value: 25038
Joystick 0 axis 1 value: 24702
Joystick 0 axis 1 value: 23021
Joystick 0 axis 1 value: 21005
Joystick 0 axis 1 value: 19324
Joystick 0 axis 1 value: 16636
Joystick 0 axis 1 value: 13611
Joystick 0 axis 1 value: 11258
Joystick 0 axis 1 value: 8234
Joystick 0 axis 1 value: 4537
Joystick 0 axis 1 value: 504
Joystick 0 axis 1 value: 0

These values are consistent enough.

Calibrating the joystick using jscal gives a full range with jstest.

toby@toby-desktop:~/progs/git/SDL2/test$ jscal -s 2,1,0,458,458,1272167,1086750,1,0,130,130,6391125,5965050 /dev/input/by-id/usb-Logitech_Inc._WingMan_Formula_Force_GP-joystick
toby@toby-desktop:~/progs/git/SDL2/test$ jstest /dev/input/by-id/usb-Logitech_Inc._WingMan_Formula_Force_GP-joystick
Driver version is 2.1.0.
Joystick (Logitech Inc. WingMan Formula Force GP) has 2 axes (X, Y)
and 6 buttons (Trigger, ThumbBtn, ThumbBtn2, TopBtn, TopBtn2, PinkieBtn).
Testing ... (interrupt to exit)
Axes:  0:-32690  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0: 32634  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0: -2330  1:-32767 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0: -1864  1: 32766 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off 
Axes:  0: -1864  1:     0 Buttons:  0:off  1:off  2:off  3:off  4:off  5:off ^C

Now if I repeat the testjoystick test, I still see the original test range for axis 1.

Watching joystick 0: (Logitech Inc. WingMan Formula Force GP)
Joystick has 2 axes, 0 hats, 0 balls, and 6 buttons
Joystick 0 axis 0 value: -1233
Joystick 0 axis 0 value: -1233
Joystick 0 axis 1 value: -1513
Joystick 0 axis 1 value: -5882
Joystick 0 axis 1 value: -10587
Joystick 0 axis 1 value: -14620
Joystick 0 axis 1 value: -18317
Joystick 0 axis 1 value: -22350
Joystick 0 axis 1 value: -21678
Joystick 0 axis 1 value: -18989
Joystick 0 axis 1 value: -15628
Joystick 0 axis 1 value: -11595
Joystick 0 axis 1 value: -7226
Joystick 0 axis 1 value: -1513
Joystick 0 axis 1 value: 0
Joystick 0 axis 1 value: 2856
Joystick 0 axis 1 value: 6889
Joystick 0 axis 1 value: 9578
Joystick 0 axis 1 value: 11930
Joystick 0 axis 1 value: 15291
Joystick 0 axis 1 value: 18652
Joystick 0 axis 1 value: 21677
Joystick 0 axis 1 value: 25038
Joystick 0 axis 1 value: 26046
Joystick 0 axis 1 value: 25374
Joystick 0 axis 1 value: 25038
Joystick 0 axis 1 value: 25710
Joystick 0 axis 1 value: 26046
Joystick 0 axis 1 value: 25374
Joystick 0 axis 1 value: 25038
Joystick 0 axis 1 value: 24702
Joystick 0 axis 1 value: 24365
Joystick 0 axis 1 value: 22685
Joystick 0 axis 1 value: 20669
Joystick 0 axis 1 value: 18988
Joystick 0 axis 1 value: 15627
Joystick 0 axis 1 value: 10922
Joystick 0 axis 1 value: 6889
Joystick 0 axis 1 value: 1512
Joystick 0 axis 1 value: 0

I believe I am also seeing this behaviour in the StuntRally 2.2.1 release and also in Euro Truck Simulator 2 (current Steam version).
Comment 1 Andreas Hartmetz 2014-03-15 21:22:36 UTC 
This is an aspect of bug 2353 - there is just no support for calibration anymore.
Comment 2 Ryan C. Gordon 2014-03-22 19:14:07 UTC 
Yes, this is a duplicate of Bug #2353, but we're going to add support for this back in.

--ryan.

*** This bug has been marked as a duplicate of bug 2353 ***