FPC match-on-host (USB 10a5:9924)

Status: WIP (unmerged upstream MR)

Device ID(s): 10a5:9924

An FPC (Fingerprint Cards) match-on-host sensor handled by the fpcmoc driver. Seen on Honor laptops. Upstream fpcmoc does not yet list this product ID.

This is a driver change submitted to the official libfprint project but not merged yet, tracked here so people with this sensor can find and build the work in progress.

Upstream merge request

libfprint MR !611: https://gitlab.freedesktop.org/libfprint/libfprint/-/merge_requests/611
Author: zeno (@Zeno-sole)

What it does

Adds 10a5:9924 to the fpcmoc driver table and to the USB autosuspend hwdb. Also adds fallback handling for a non-standard identity format used by some FPC sensors (e.g. FPC L:2407) during verify, where the sensor reports a match with zero identity fields.

Protocol reference / origin fork: https://github.com/reackcjq/honor-fpc-fingerprint-linux

10a5:9800 - another FPC match-on-host (fpcmoh) sensor, already working.
10a5:9200 - FPC1022 Disum (fpcmoh), WIP.

How to use it

The code lives in the merge request, not in this repo. To try it, check out the MR's source branch of libfprint and build from source (see docs/BUILD.md for the shared build, install and PAM steps).

git fetch https://gitlab.freedesktop.org/libfprint/libfprint.git \
  merge-requests/611/head:mr-611
git checkout mr-611

Tested on

See the MR discussion.

License

Part of libfprint (LGPL-2.1).