Applies to other Logitech wheels (G920)

ctospark commented 5 years ago

Thank you for your great work. I would like to apply this module for Logitech G920. I modified the vendor and product ID in index.js to connect G920 but when I executed example js file for connect, it made following error.

Error: Cannot write to HID device at relayOS (C:\Users\sungwoo\Documents\logitech_con\node_modules\logitech-g29\code\index.js:215:12) at forceConstant (C:\Users\sungwoo\Documents\logitech_con\node_modules\logitech-g29\code\index.js:388:5) at Object.connect (C:\Users\sungwoo\Documents\logitech_con\node_modules\logitech-g29\code\index.js:147:5) at Object. (C:\Users\sungwoo\Documents\logitech_con\connect.js:3:3) at Module._compile (module.js:652:30) at Object.Module._extensions..js (module.js:663:10) at Module.load (module.js:565:32) at tryModuleLoad (module.js:505:12) at Function.Module._load (module.js:497:3) at Function.Module.runMain (module.js:693:10)

Would you mind tell me which parts should be changed to connect with G920? Thank you for your great work.

Sungwoo

nightmode commented 5 years ago

Hi and thanks. :D

It looks like the G920 is the Xbox version of a Logitech Wheel ya?

Sounds like you found the wheel by changing the vendor and product ID so that is good news. Then it gets stuck trying to send a movement command to the wheel in order to see which wheel mode the G920 is in. Not sure if detecting the low or high precision wheel mode is necessary for this particular wheel though. I don't have a G920 to experiment on so I can only offer you some ideas to try.

Ideas to try in logitech-g29\code\index.js

Hard code the variable prependWrite to false to see if that helps the relayOS function.
Hard code the variable prependWrite to true to see if that helps the relayOS function.
Inside the connect function, disable the call to forceConstant(1) at the bottom and instead gently nudge the wheel when you start the program to generate a move event. The move event is needed to see what format the wheel sends data back in. Low or high precision modes. If low precision mode is detected, the G29 wheel init may be attempted in which case if you have trouble writing to the wheel, it will likely crash again.

I'm not sure how much I can help but if you find that you make a tiny bit more progress before getting stuck at the next thing, let me know.

nightmode commented 5 years ago

Hey ctospark,

Can you run node ./test/hid-devices.js and then search for G920 and post the object (or objects) you find?

Here is my G29 object. Ignore the productId since I'm having an issue with that currently.

{
    vendorId: 1133,
    productId: 49812,
    path: 'IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/XHC1@14/XHC1@14000000/HS11@14600000/G29 Driving Force Racing Wheel@14600000/IOUSBHostInterface@0/IOUSBHostHIDDevice@14600000,0',
    serialNumber: '',
    manufacturer: 'Logitech',
    product: 'G29 Driving Force Racing Wheel',
    release: 4944,
    interface: -1,
    usagePage: 1,
    usage: 5
}

nightmode / logitech-g29

Applies to other Logitech wheels (G920) #10