Closed ZRtmWrJqXcjbqBLIMBYMCeUw closed 3 years ago
After some work, I was able to create a report descriptor that makes use of the data from the G923 to get the advice to at least work. However, after doing so, and after reading through some of the patches submitted for the G920 on the Linux input mailing, I think this is not the way to go.
I believe the wheel to be stuck in auto-centering mode, which gives a partial feeling of force feedback, but along with the approximately 10 degrees of dead zone on either side when turning, this is likely the issue that should be focused on. All of the details can be found in issue #1 but I now believe solving that issue might actually solve this issue as the original report descriptor of the G923 is correct and switching out of auto-centering mode might be the way to get the wheel to report the correct data according to the original report descriptor.
Heya. Even if this is a dead end: thanks for getting the info around it is not working. After digging throught half the internet and learning more about drivers and usb than I wanted, this was a good thing to read that it is just not implemented. Maybe time to bag my wheel and wait until support is done? Anything I can help with?
That is I would suggest. I am no USB/HID wizard so I cannot promise I will get this even somewhat working any time soon. Getting one of the many wheels that do work with Linux, particularly with @berarma's new-lg4ff module, is probably the most sane thing to do.
Unless you work for Logitech and know how the wheel's internals work, there is not much you can help with, unfortunately. Thanks for the offer, though.
Closing this issue as more information has emerged detailing how the G923 operates. See #3.
Input from the wheel, pedals, shifter, and certain buttons is not being recognized by Linux. I have aggregated all of the current data I have/am working with.
The following data is reported by
usbhid-dump
from the G923.Report descriptors:
Stream data:
Breakdown based on my tests of the wheel:
Original report descriptor (retrieved/formatted through hid-tools):
Current, work-in-progress report (based on above data breakdown. Shifter and dual clutch system buttons do not work):