Protocol Error on Arch T470s device 138a:0097

[Stelorio]

I spend two days to get my fingerprint reader working but got nowhere.

Fingerprint reader
Bus 001 Device 005: ID 138a:0097 Validity Sensors, Inc.

Installed versions:

fprintd 1.90.1-1
libfprint-vfs009x-git 1:1.90.1.r6.g2978dc0-2

Build it multiple times but fprintd-enroll will always give me

Using device /net/reactivated/Fprint/Device/0
failed to claim device: Open failed with error: The driver encountered a protocol error with the device.

Journal Entry

Mai 23 17:21:18 T470 systemd[1]: Starting Fingerprint Authentication Daemon...
Mai 23 17:21:19 T470 systemd[1]: Started Fingerprint Authentication Daemon.
Mai 23 17:21:19 T470 fprintd[6898]: Reply mismatch, expected at char 2 (actual 0x1f, expected  0xef)
Mai 23 17:21:19 T470 fprintd[6898]: Data exchange failed at state 5, usb error: The driver encountered a protocol error with the device.
Mai 23 17:21:19 T470 fprintd[6898]: 0000 00 00 1f 00 85 00 00 10  01 00 00 01 01 00 05 00  | ................
Mai 23 17:21:19 T470 fprintd[6898]: 0010 01 04 07 00 00 10 00 00  00 10 00 00 02 01 02 00  | ................
Mai 23 17:21:19 T470 fprintd[6898]: 0020 00 20 00 00 00 e0 03 00  05 05 03 00 00 00 04 00  | . ..............
Mai 23 17:21:19 T470 fprintd[6898]: 0030 00 80 00 00 06 06 03 00  00 80 04 00 00 80 00 00  | ................
Mai 23 17:21:19 T470 fprintd[6898]: g_task_return_error: assertion 'G_IS_TASK (task)' failed

[Stelorio]

If somebody else has issues with this repo, it is dead and broken.

Just use https://github.com/uunicorn/python-validity
Fixed my issue