<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style> </head> <body dir="ltr"> <div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> Hi everyone. My name is Carlos from México. I recently got to know the libfprint project and I'm interested in using the library.</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> I made a port of libfprint for Windows O.S. using MSYS2 and works fine. I have tested the examples provided in the library v1.90.6 for the enroll and verify processes in Linux (Ubuntu 18.04 LTS) and Windows using the device: Digital Persona U are U 4500.</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> When I testing the examples I found a possible error (really I don't known if really is an error or I'm not using correctly the library). When the process for Enroll or Verify is executing and ask for the FINGER ON, if I unplug the USB device then the user callback will never be called. Internally the device is DEACTIVATE so the state change to DEACTIVATE but the action remains as FPI_DEVICE_ACTION_ENROLL or FPI_DEVICE_ACTION_VERIFY according to the case. This is a problem because I'm never notified and it causes the app to hang.</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> If I plug the device again nothing happens, just a message saying it can't be bind.</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> If I prepare the examples for GCancellable, create a signal handler for SIGINT and execute g_cancellable_cancel inside the signal handler, nothing happens, it only indicates that the device is already DEACTIVATE</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> If I try to close the device I have an error FP_DEVICE_ERROR_BUSY.</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> So someone can help me?</p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> </p> <p class="x_MsoNormal" style="margin: 0in; font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);"> Thanks.</p> <br> </div> </body> </html>