Digital Persona Fingerprint scanner not detected on Android phones ~Android ~Digital Persona ~U.R.U 4500











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We've recently just purchased Digital Persona U.Are.U 4500 that we want to use it to scan fingerprint and connect it to Android phones. But the problem is that even from sample app from the SDK, the app cannot detect the scanner.
Then we try to make android project from the beginning and use the sdk to get the readers using UareUGlobal.GetReaderCollection().GetReaders() but it always results in empty list.
When looking at logcat, there's one warning that says:



type=1400 audit(0.0:19869): avc: denied { read } for name="video4linux" dev="sysfs" ino=15721 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=dir permissive=0


Anyone know how to fix this?



Thank you in advance.






android fingerprint







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    up vote
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    down vote

    favorite












    We've recently just purchased Digital Persona U.Are.U 4500 that we want to use it to scan fingerprint and connect it to Android phones. But the problem is that even from sample app from the SDK, the app cannot detect the scanner.
    Then we try to make android project from the beginning and use the sdk to get the readers using UareUGlobal.GetReaderCollection().GetReaders() but it always results in empty list.
    When looking at logcat, there's one warning that says:



    type=1400 audit(0.0:19869): avc: denied { read } for name="video4linux" dev="sysfs" ino=15721 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=dir permissive=0


    Anyone know how to fix this?



    Thank you in advance.






    android fingerprint







    share|improve this question







    New contributor




    Subkhan Sarif is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      We've recently just purchased Digital Persona U.Are.U 4500 that we want to use it to scan fingerprint and connect it to Android phones. But the problem is that even from sample app from the SDK, the app cannot detect the scanner.
      Then we try to make android project from the beginning and use the sdk to get the readers using UareUGlobal.GetReaderCollection().GetReaders() but it always results in empty list.
      When looking at logcat, there's one warning that says:



      type=1400 audit(0.0:19869): avc: denied { read } for name="video4linux" dev="sysfs" ino=15721 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=dir permissive=0


      Anyone know how to fix this?



      Thank you in advance.






      android fingerprint







      share|improve this question







      New contributor




      Subkhan Sarif is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      We've recently just purchased Digital Persona U.Are.U 4500 that we want to use it to scan fingerprint and connect it to Android phones. But the problem is that even from sample app from the SDK, the app cannot detect the scanner.
      Then we try to make android project from the beginning and use the sdk to get the readers using UareUGlobal.GetReaderCollection().GetReaders() but it always results in empty list.
      When looking at logcat, there's one warning that says:



      type=1400 audit(0.0:19869): avc: denied { read } for name="video4linux" dev="sysfs" ino=15721 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:sysfs:s0 tclass=dir permissive=0


      Anyone know how to fix this?



      Thank you in advance.






      android fingerprint




      android fingerprint






      share|improve this question







      New contributor




      Subkhan Sarif is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      Subkhan Sarif is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






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      Subkhan Sarif is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 14 hours ago









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      Subkhan Sarif is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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