HID driver for Linux that supports side buttons of Xiaomi Mi Silent Mouse
This kernel module was included in upcoming 5.16 kernel release. This package only makes sense now for kernel ≤5.15.
First download .deb package from Releases.
sudo dpkg -i hid_xiaomi-dkms_1.0_amd64.deb
sudo modprobe hid_xiaomi
Side buttons on your mouse should start to work immediately. But you will need to do modprobe hid_xiaomi after each reboot.
To automatically insert the module while booting add hid_xiaomi to your /etc/modules file.