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The new libfprint version has support for devices that store data on the sensor. In that case, the on-sensor storage might fill up when the user tries to enroll a new print. The strategy introduced here to handle this is to try and delete prints from the device that we do not know about (assuming, it is e.g. from an old installation and unusable). It can also happen that we are not able to garbage collect old prints. If that happens, a new error code "enroll-data-full" will be returned signalling the situation to the enrolling application.
fprintd ======= https://fprint.freedesktop.org/ Daemon to offer libfprint functionality over D-Bus Might eat your kangaroo. Written in C. Licensed under the GPL version 2 or any later version (see COPYING). A PAM login module is included in the 'pam' directory. API use cases ============= - User wants to use the fingerprint reader, and enroll his fingerprints, or remove some fingerprints from the database - Administrator wants to enroll fingerprints for a particular user, or remove fingerprints for a particular user - Laptop/desktop authentication: * Check for fingerprint devices * Check whether a particular user has any fingerprints enrolled * Verify a fingerprint for a particular user, or, if the device supports it, verify that the fingerprint matches against any of the fingerprints enrolled - Point Of Sale authentication (in a bar, the fingerprint reader is used to see who accesses a particular point of sale/till, in place of PIN code authentication and/or tokens) * Given a list of users, verify which one has scanned their finger