if archwiki is unclear ask i can help for sure as i do set it up freshly…
yay -S fingerprint-gui
sudo gpasswd -a username scanner
sudo gpasswd -a username plugdev
log out and back in, if you are on kde or gnome:
then:
fingerprint-gui -d
If it do work in detecting your device and you can setup reading fingerprints:
If you are using GNOME or KDE follow the instructions pacman gives and remove the following files:
sudo nano /etc/xdg/autostart/
and remove :
polkit-gnome-authentication-agent-1.desktop
polkit-kde-authentication-agent-1.desktop
save Ctrl+X
now follow:
https://wiki.archlinux.org/index.php/Fingerprint_GUI#Authentication
to setup pam files to make use of fingerprint reader…
the one for su and suso and for loginmanager like lightdm sddm or gdm…