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fftest: Upload effects[0]: Function not implemented
(2 posts, started )
#1 - Anisha Kaul
fftest: Upload effects[0]: Function not implemented
The wheel is DFGT logitech,
Kernel: 2.6.32 64 bit

linux-dopx:/home/anisha/tarBalls/TripleSpeeder-LTWheelConf-665e227 # [B]./ltwheelconf --wheel DFGT --nativemode --range 900 --autocenter 0 --gain=100 -d /dev/input/event4[/B]
Found a Driving Force GT already in native mode.
Wheel rotation range of Driving Force GT is now set to 900 degrees.
Autocenter for Driving Force GT is now set to 0 with rampspeed 0.
Wheel forcefeedback gain is now set to 100.

linux-dopx:/home/anisha # [B]fftest /dev/input/event4[/b]
Force feedback test program.
HOLD FIRMLY YOUR WHEEL OR JOYSTICK TO PREVENT DAMAGES

Device /dev/input/event4 opened
Axes query:
Effects:
Number of simultaneous effects: 0
[B]Upload effects[0]: Function not implemented
Upload effects[1]: Function not implemented
Upload effects[2]: Function not implemented
Upload effects[3]: Function not implemented
Upload effects[4]: Function not implemented
Upload effects[5]: Function not implemented[/B]
Enter effect number, -1 to exit
^C

linux-dopx:/home/anisha # [B]ffcfstress -d /dev/input/event4[/B]
ERROR: device (or driver) has no force feedback support [ffcfstress.c:165]

Any helps?
#2 - Anisha Kaul
Solved
  • I replaced the label LOGITECH_FF with LOGIWHEELS_FF in the file /usr/src/linux-2.6.34-12/drivers/hid/Kconfig.
  • Set default y as shown below:
    config [COLOR="red"]LOGIWHEELS_FF [/COLOR]
    bool "Logitech force feedback support"
    depends on HID_LOGITECH
    [COLOR="Red"]default y [/COLOR]
    select INPUT_FF_MEMLESS
    help
    Say Y here if you have one of these devices:
    -Logitech WingMan Cordless RumblePad
    -Logitech WingMan Cordless RumblePad 2
    -Logitech WingMan Force 3D
    -Logitech Formula Force EX
    -Logitech WingMan Formula Force GP
    -Logitech MOMO Force wheel

    and if you want to enable force feedback for them.
    Note: if you say N here, this device will still be supported, but without
    force feedback

    The fftest worked with constant force as shown below.
    linux-dopx:/home/anisha/ # fftest /dev/input/event4
    Force feedback test program.
    HOLD FIRMLY YOUR WHEEL OR JOYSTICK TO PREVENT DAMAGES

    Device /dev/input/event4 opened
    Axes query:
    Effects: Constant
    Number of simultaneous effects: 16
    Upload effects[0]: Invalid argument
    Upload effects[2]: Invalid argument
    Upload effects[3]: Invalid argument
    Upload effects[4]: Invalid argument
    Upload effects[5]: Invalid argument
    Enter effect number, -1 to exit
    1
    Now Playing: Constant Force
    Enter effect number, -1 to exit

Thanks to: Simon from linux-input mailing list.
http://www.spinics.net/lists/linux-input/msg19084.html

fftest: Upload effects[0]: Function not implemented
(2 posts, started )
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