Setting up the ATKey.pro USB fingerprint reader in Linux (FIDO2 U2P)
Summary
A practical, step-by-step guide for setting up an ATKey.pro USB fingerprint reader (FIDO2 U2P) on Linux. It covers device detection, Chrome-based PIN/fingerprint enrollment, and configuring PAM, udev rules, and polkit for sudo and login authentication, plus Bitwarden browser integration. Useful for SMBs and individual users seeking hardware-backed authentication on Linux systems.