[fprint] etes603 error

Paolo Valleri paolo.valleri at gmail.com
Fri May 23 14:08:28 PDT 2014

Hi all,
I've just cloned (and compiled) the git repository to try the usb finger
reader on a raspberry pi, the output on enroll is:
pi at apd ~/libfprint/examples $ sudo ./enroll
This program will enroll your right index finger, unconditionally
overwriting any right-index print that was enrolled previously. If you want
to continue, press enter, otherwise hit Ctrl+C

Found device claimed by EgisTec ES603 driver
Opened device. It's now time to enroll your finger.

You will need to successfully scan your finger 5 times to complete the

Scan your finger now.
Wrote scanned image to enrolled.pgm
Enroll stage passed. Yay!

Scan your finger now.
libusb: warning [handle_timeout] async cancel failed -4 errno=19
etes603:warning [async_tx_cb] transfer is not completed (status=5)
etes603:error [m_finger_complete] Error while capturing fingerprint
sync:error [fp_enroll_finger_img] unrecognised return code -4

The usb stick I have is this one:
lsusb recognizes it as:
ID 1c7a:0603 LighTuning Technology Inc.

what can I do to fix the issue?

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