我有一个 Acer Swift 3 (SF314-57) 跑步机，它有一个 0570 LighTuning Technology Inc. EgisTec 触摸指纹传感器。最新的 libfprint 版本 (v1.92.1) 刚刚提供了对该设备的支持，所以我自然一直在努力让它工作。
我从官方 arch 存储库安装了 fprintd 软件包，但是，当我尝试注册指纹时，它只是“卡住”，并带有Enrolling right-index-finger finger闪烁的光标，并且无论尝试扫描我的指纹多少次，它都不会给出任何形式的信息。表明某事正在发生。
我的系统可以看到该设备并且 fprintd.service 正在运行：
[sudo] password for mipy:
● fprintd.service - Fingerprint Authentication Daemon
Loaded: loaded (/usr/lib/systemd/system/fprintd.service; static)
Active: active (running) since Sun 2021-08-08 16:04:25 AEST; 3s ago
Docs: man:fprintd(1)
Main PID: 7381 (fprintd)
Tasks: 6 (limit: 18803)
Memory: 1.6M
CPU: 57ms
CGroup: /system.slice/fprintd.service
└─7381 /usr/lib/fprintd
Aug 08 16:04:24 ruby-swift314-57 systemd[1]: Starting Fingerprint Authentication Daemon...
Aug 08 16:04:25 ruby-swift314-57 systemd[1]: Started Fingerprint Authentication Daemon.
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 04f2:b5c5 Chicony Electronics Co., Ltd HD WebCam
Bus 003 Device 002: ID 1c7a:0570 LighTuning Technology Inc. EgisTec Touch Fingerprint Sensor
Bus 003 Device 004: ID 8087:0026 Intel Corp. AX201 Bluetooth
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
我得到的唯一错误journalctl -f -u fprintd.service是：
fprintd[6957]: Failed to clear storage before first enrollment: Device has no storage.
（我应该补充一点，我的磁盘有大约 50GB 的可用存储空间，所以问题不在于我的磁盘存储空间 - 我假设是读者的存储空间？）
当我从源代码构建 libfprint 时，使用meson compile然后meson test，并尝试使用示例进行注册，它显示：
This program will enroll the selected finger, unconditionally overwriting any print for the same finger that was enrolled previously. If you want to continue, press enter, otherwise hit Ctrl+C
Choose the finger to enroll:
[0] left thumb
[1] left index
[2] left middle
[3] left ring
[4] left little
[5] right thumb
[6] right index
[7] right middle
[8] right ring
[9] right little
> 6
(process:5575): libfprint-context-DEBUG: 15:21:02.406: No driver found for USB device 1D6B:0003
(process:5575): libfprint-context-DEBUG: 15:21:02.406: No driver found for USB device 04F2:B5C5
(process:5575): libfprint-context-DEBUG: 15:21:02.407: No driver found for USB device 8087:0026
(process:5575): libfprint-context-DEBUG: 15:21:02.407: No driver found for USB device 1D6B:0002
(process:5575): libfprint-context-DEBUG: 15:21:02.407: No driver found for USB device 1D6B:0003
(process:5575): libfprint-context-DEBUG: 15:21:02.407: No driver found for USB device 1D6B:0002
Selected device 0 (Egis Technology Inc. (aka. LighTuning) 0570) claimed by egis0570 driver
(process:6437): libfprint-image_device-DEBUG: 15:33:00.490: Image device open completed
(process:6437): libfprint-device-DEBUG: 15:33:00.490: Device reported open completion
(process:6437): libfprint-device-DEBUG: 15:33:00.491: Completing action FPI_DEVICE_ACTION_OPEN in idle!
Opened device. It's now time to enroll your finger.
You will need to successfully scan your right index finger 5 times to complete the process.
Scan your finger now.
(process:6437): libfprint-image_device-DEBUG: 15:33:00.492: Activating image device
(process:6437): libfprint-image_device-DEBUG: 15:33:00.492: Image device internal state change from FPI_IMAGE_DEVICE_STATE_INACTIVE to FPI_IMAGE_DEVICE_STATE_ACTIVATING
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 0
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 1
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-image_device-DEBUG: 15:33:00.492: Image device activation completed
(process:6437): libfprint-image_device-DEBUG: 15:33:00.492: Image device internal state change from FPI_IMAGE_DEVICE_STATE_ACTIVATING to FPI_IMAGE_DEVICE_STATE_IDLE
(process:6437): libfprint-image_device-DEBUG: 15:33:00.492: Image device internal state change from FPI_IMAGE_DEVICE_STATE_IDLE to FPI_IMAGE_DEVICE_STATE_AWAIT_FINGER_ON
(process:6437): libfprint-device-DEBUG: 15:33:00.492: Device reported finger status change: FP_FINGER_STATUS_NEEDED
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.492: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.493: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.493: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.493: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.493: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.493: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.493: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.494: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.495: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.496: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.497: [egis0570] SM_STATES_NUM entering state 4
(process:6437): libfprint-image_device-DEBUG: 15:33:00.564: Image device reported finger status: off
(process:6437): libfprint-SSM-DEBUG: 15:33:00.564: [egis0570] SM_STATES_NUM entering state 5
(process:6437): libfprint-SSM-DEBUG: 15:33:00.564: [egis0570] SM_STATES_NUM entering state 1
(process:6437): libfprint-SSM-DEBUG: 15:33:00.564: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.564: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.564: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.565: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.565: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.565: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.565: [egis0570] SM_STATES_NUM entering state 2
(process:6437): libfprint-SSM-DEBUG: 15:33:00.565: [egis0570] SM_STATES_NUM entering state 3
(process:6437): libfprint-SSM-DEBUG: 15:33:00.565: [egis0570] SM_STATES_NUM entering state 4
(process:6437): libfprint-egis0570-DEBUG: 15:33:00.632: Finger status (picture number, mean) : 0 , 0
(process:6437): libfprint-egis0570-DEBUG: 15:33:00.632: Finger status (picture number, mean) : 1 , 0
(process:6437): libfprint-egis0570-DEBUG: 15:33:00.632: Finger status (picture number, mean) : 2 , 0
(process:6437): libfprint-egis0570-DEBUG: 15:33:00.632: Finger status (picture number, mean) : 3 , 0
(process:6437): libfprint-egis0570-DEBUG: 15:33:00.632: Finger status (picture number, mean) : 4 , 0
(process:6437): libfprint-image_device-DEBUG: 15:33:00.632: Image device reported finger status: off
并且不断循环“手指状态”和“SM_STATES_NUM”位，直到我杀死它。
当我尝试使用示例中的管理打印时，我得到：
This program will report the prints saved in device
(process:7187): libfprint-context-DEBUG: 15:56:24.549: No driver found for USB device 1D6B:0003
(process:7187): libfprint-context-DEBUG: 15:56:24.549: No driver found for USB device 04F2:B5C5
(process:7187): libfprint-context-DEBUG: 15:56:24.549: No driver found for USB device 8087:0026
(process:7187): libfprint-context-DEBUG: 15:56:24.549: No driver found for USB device 1D6B:0002
(process:7187): libfprint-context-DEBUG: 15:56:24.549: No driver found for USB device 1D6B:0003
(process:7187): libfprint-context-DEBUG: 15:56:24.549: No driver found for USB device 1D6B:0002
Selected device 0 (Egis Technology Inc. (aka. LighTuning) 0570) claimed by egis0570 driver
(process:7187): libfprint-image_device-DEBUG: 15:56:24.690: Image device open completed
(process:7187): libfprint-device-DEBUG: 15:56:24.691: Device reported open completion
(process:7187): libfprint-device-DEBUG: 15:56:24.691: Completing action FPI_DEVICE_ACTION_OPEN in idle!
(process:7187): libfprint-WARNING **: 15:56:24.691: Device Egis Technology Inc. (aka. LighTuning) 0570 doesn't support storage
(process:7187): libfprint-device-WARNING **: 15:56:24.691: User destroyed open device! Not cleaning up properly!
libusb: warning [libusb_exit] application left some devices open
当我尝试运行时fwupdmgr update，我得到：
Devices with no available firmware updates:
• System Firmware
• UEFI Device Firmware
• UEFI dbx
• WDC PC SN520 SDAPNUW-512G-1014
No updatable devices
有人知道发生了什么事吗？我觉得我错过了一些明显的东西，但我不知道是什么。
谢谢 ：）