> Thanks for taking the time to test it. No problem, I had a go at this a few years ago and had the same issue with my patches. I did email the last Logitech contact I could find associated with the driver, but he seems to have moved to a different part of the company. > Is your product id the same as the one in the patch or are you modifying > it before compiling? No modifications, it's 046d:c547 > Can you please dump the HID descriptors from your receiver > (sudo usbhid-dump -m 046d:c547) and share them? Sure (hoping this doesn't get mangled): 001:003:002:DESCRIPTOR 1756919882.495801 06 00 FF 09 01 A1 01 85 10 95 06 75 08 15 00 26 FF 00 09 01 81 00 09 01 91 00 C0 06 00 FF 09 02 A1 01 85 11 95 13 75 08 15 00 26 FF 00 09 02 81 00 09 02 91 00 C0 001:003:001:DESCRIPTOR 1756919882.500790 05 01 09 06 A1 01 85 01 05 07 19 E0 29 E7 15 00 25 01 75 01 95 08 81 02 95 05 05 08 19 01 29 05 91 02 95 01 75 03 91 03 95 70 75 01 05 07 19 04 29 73 81 02 95 05 19 87 29 8B 81 02 95 03 19 90 29 92 81 02 C0 05 0C 09 01 A1 01 85 03 95 02 75 10 15 01 26 FF 02 19 01 2A FF 02 81 00 C0 05 01 09 80 A1 01 85 04 95 01 75 02 15 01 25 03 09 82 09 81 09 83 81 00 75 01 15 00 25 01 09 9B 81 06 75 05 81 03 C0 001:003:000:DESCRIPTOR 1756919882.504793 05 01 09 02 A1 01 09 01 A1 00 95 10 75 01 15 00 25 01 05 09 19 01 29 10 81 02 95 02 75 10 16 01 80 26 FF 7F 05 01 09 30 09 31 81 06 95 01 75 08 15 81 25 7F 09 38 81 06 95 01 05 0C 0A 38 02 81 06 C0 06 00 FF 09 F1 75 08 95 05 15 00 26 FF 00 81 00 C0
