[MODULE JOYDEV] Steering wheel Logitech Driving Force GT -> wrong number of axis, and wrong axis separation for throttle and brake

[MODULE JOYDEV] Steering wheel Logitech Driving Force GT -> wrong number of axis, and wrong axis separation for throttle and brake

[Giuseppe Della Bianca]

Hi.

With steering wheel Logitech Driving Force GT are recognized wrong number of 
axis, and wrong axis separation for throttle and brake.

For example, the game torcs, requires throttle and brake on the same axis.


Fedora release 21 (Twenty One), Linux 4.1.8-100.fc21.x86_64

[ 3359.259057] usb 2-6: new full-speed USB device number 6 using ohci-pci
[ 3359.455081] usb 2-6: New USB device found, idVendor=046d, idProduct=c294
[ 3359.455094] usb 2-6: New USB device strings: Mfr=0, Product=2, 
SerialNumber=0
[ 3359.455101] usb 2-6: Product: Driving Force GT
[ 3359.467680] input: Driving Force GT as 
/devices/pci0000:00/0000:00:02.0/usb2/2-6/2-6:1.0/0003:046D:C294.0007/input/input15
[ 3359.518729] logitech 0003:046D:C294.0007: input,hidraw3: USB HID v1.00 
Joystick [Driving Force GT] on usb-0000:00:02.0-6/input0
[ 3359.532116] usb 2-6: USB disconnect, device number 6
[ 3360.061052] usb 2-6: new full-speed USB device number 7 using ohci-pci
[ 3360.260081] usb 2-6: New USB device found, idVendor=046d, idProduct=c29a
[ 3360.260094] usb 2-6: New USB device strings: Mfr=0, Product=2, 
SerialNumber=0
[ 3360.260102] usb 2-6: Product: Driving Force GT
[ 3360.282321] input: Driving Force GT as 
/devices/pci0000:00/0000:00:02.0/usb2/2-6/2-6:1.0/0003:046D:C29A.0008/input/input16
[ 3360.333728] logitech 0003:046D:C29A.0008: input,hidraw3: USB HID v1.11 
Joystick [Driving Force GT] on usb-0000:00:02.0-6/input0
[ 3360.333788] logitech 0003:046D:C29A.0008: Force feedback support for 
Logitech Gaming Wheels


Bus 002 Device 005: ID 046d:c29a Logitech, Inc. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        16
  idVendor           0x046d Logitech, Inc.
  idProduct          0xc29a 
  bcdDevice           13.27
  iManufacturer           0 
  iProduct                2 Driving Force GT
  iSerial                 0 
  bNumConfigurations      1


jscal -c /dev/input/js0 
Joystick has 5 axes and 21 buttons. 
....

# steering wheel calibration (right)
Move axis 0 to minimum position and push any button.
....

# throttle calibration (right)
Move axis 1 to minimum position and push any button.

# brake calibration (wrong, the brake calibration must be on axis 1, for 
example 255 (throttle), 0 (none), -255 (brake))
Move axis 2 to minimum position and push any button.
....

Regards.

Gdb