Request: Add support for Logitech Signature M650 Mouse

[DaviBassani]

Hello LogiOps Developers,

I would like to request support for the Logitech Signature M650 mouse.

My System Information:

• OS: Linux (KDE Plasma 6.4)
• Connection: Using the official Logi Bolt Receiver.

Diagnostics Performed:

1. The mouse works perfectly with Solaar, which correctly identifies the device model ("Logi M650") and reports its battery status accurately. This confirms the underlying system and kernel can communicate with the device.
2. The logid -v command only detects the Bolt receiver ([INFO] Detected receiver at /dev/hidrawX) but does not enumerate the connected M650 mouse (and my MX Keys Mini), even with a manual entry in logid.cfg.

evtest Button Codes:
To assist in adding support, I have captured the button codes for the M650 using evtest on /dev/input/eventX:

Physical Button	evtest Code
Left Click	BTN_LEFT (272)
Right Click	BTN_RIGHT (273)
Middle Click (Wheel)	BTN_MIDDLE (274)
Side Button (Back)	BTN_SIDE (275)
Side Button (Forward)	BTN_EXTRA (276)

It seems the device definitions for this specific model are missing from the current version of LogiOps. Adding them would be a fantastic improvement.

Thank you for your excellent work on this project!

[JustMax10001001]

Same problem with Ubuntu 24.04.3, kernel 6.14.0