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The final 1.0 release of UPEK, Inc.’s BioAPI 1.1 compliant GNU/Linux BSP for their TouchChip TFM/ESS fingerprint sensor is now available publicly.


  • GNU/Linux
  • standard TCD41 swipe readers (most notebooks and the TCRZ stand-alone reader)
  • libusb (already installed by most distributions)
  • usbfs (USB device filesystem, already installed by most distributions).
  • X Windows (the libraries are required, even if the GUI isn’t used)
  • BioAPI 1.10 framework (official reference implementation source is at the BioAPI Consortium, however the unofficial version of BioAPI framework reference implementation is recommended, because it fixes several issues)
  • The BioAPI 1.10 compliant Biometric Service Provider (BSP) from UPEK’s ftp site (see below)

Support for this public beta is provided by the community via the linux-biometrics mailing list, the UPEK BSP discussion on the forum, and the #linuxbiometrics IRC channel on FreeNode. You can join the linux-biometrics list by sending a message to with the subject "subscribe"

The non-beta releases are available from UPEK’s website: For the historical record, old beta releases are available from their FTP site:
FTP Server:
Username: linux
Password: Tuc-nak3
Direct URL:

Does this work for you? Please share your experiences using this driver either with the community, or privately with myself. Include the following in your feedback:

  • Model of UPEK fingerprint sensor — or system with embedded sensor
  • GNU/Linux distribution and processor
  • Version and provider of your BioAPI framework
  • Which applications you tried using the BSP with (sample program, other BioAPI-compliant application, or PAM-aware application via pam-bioapi)
  • Any other comments

Special thanks to UPEK for their willingness to work with and support the GNU/Linux community and Josiah Ritchie of for the kickstarting this.