fprint (libfprint) is an open source project to develop a library for the consumer fingerprint reader devices.
It aims to provide a single API to Software developers for several devices.
Currently supports following hardware:
# UPEK TouchStrip and TouchChip
# DigitalPersona / Microsoft devices
# Authentec AES1610, AES2501 and AES4000
# SecuGen FDU 2000
Several more are in active development.It was included in Fedora 11 official release with a corresponding PAM module for a better out of box experience.