finger print device in Linux system on Thinkpad

• Firstly thanks to the amazing work that nmikhailov done in Validity90 and Trevisan done in libfprint

• The device had both tested on Linuxmint & Arch

• my example in device ID: 138:0090

1.Check your finger print device in terminal

lsusb

• and show device ID (example for me) Bus xxx Device xxx: ID 138a:0090 Validity Sensors, Inc.

• here are some integrated fingerprint Reader in www.thinkwiki.org

USB ID	Reader	Software
08ff:1600	Authentec AES1610	fprint
08ff:2580	Authentec AES2501	fprint
08ff:2810	Authentec 2810	supported by libfprint v0.5.0 onwards released December 2012
138a:0017	Validity Sensors, Inc.	Fingerprint Reader (to test) Driver Patch as use case with T440 or gist sample Supported by libfprint v0.6.0
138a:0090	Validity Sensors	RE work for validity90 fingerprint reader

2.Install packages(two methods)

• 2.1 Fingerprint GUI for Ubuntu 14.04, 16.04, 17.10 and any distribution based thereupon
  • you can download the fingerprint-gui-1.09.tar.gz in repository or find the release packages in www.ullrich-online.cc
  • ! check if your device is in supported readers then install

---

• 2.2 Install fprintd (for me in device 138a:0090)

  • read the guide: Validity90 and libfprint in github

  • for ubuntu/linuxmint

    sudo apt install fpirntd
    sudo add-apt-repository -y ppa:3v1n0/libfprint-vfs0090
    sudo apt update
    sudo apt install libpam-fprintd

  • for archlinux

    sudo pacman -S fprintd
    yaourt -S libfprint-vfs0090-git

3.Enroll your finger print

• add your signature for a finger (touch your finger device)

  fprintd-enroll

  • ! use sudo fprintd-enroll may have some bug

• if not work

  for finger in {left,right}-{thumb,{index,middle,ring,little-finger}; do fprintd-enroll -f "$finger" "$USER"; done

  • e.g for finger in {left,right}-{thumb,{index,middle,ring,little-finger}; do fprintd-enroll -f "right-index-finger" "kevin"; done

  • ! here has a bug, you may need to add 10x4 times to add finger signature

4.Login configuration

• read the guide in archlinux wiki

• 4.1 For linuxmint

  • Add pam_fprintd.so as sufficient to the top of the auth section of /etc/pam.d/runuser

  sudo nano /etc/pam.d/runuser
  ---
  auth            sufficient      pam_fprintd.so
  auth            sufficient      pam_rootok.so
  session         optional        pam_keyinit.so revoke
  ...

• 4.2 For archlinux

  • Add pam_fprintd.so as sufficient to the top of the auth section of /etc/pam.d/system-local-login

5.Reboot

• check the light of finger device
• in linuxmint, print finger then click sign in
• in archlinux, click enter then print finger