[Fingerforce-devel] Bug#496530: libfprint0: unable to read from AES 2501 device as normal user

[Stefano Costa]

Package: libfprint0
Version: 20080202-3
Severity: normal


My Lenovo 3000 N200 laptop is equipped with and AES 2501 fingerprint
reader. I found out on the fprint website that this device is supported
so I gave it a try.

But, even if in /etc/udev/rules.d/z60_libfprint0.rules there's a specific
line for this device, fprint-demo says it cannot read from it ("Status: can't
open device"). If I run as root, it works without any problem. My user is in
the "plugdev" group, and the udev rule says:

# Device aes2501
ATTRS{idVendor}=="08ff", ATTRS{idProduct}=="2580", MODE="0664", GROUP="plugdev"

Also if I try to run pam_fprint_enroll as normal user:

Found device claimed by AuthenTec AES2501 driver
aes2501:error [dev_init] could not claim interface 0
fp:error [fp_dev_open] device initialisation failed, driver=aes2501
Could not open device.

Also here root can read from the device w/o any problem.

Best,
Steko

--
Stefano Costa
http://www.iosa.it/

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (101, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages fprint-demo depends on:
ii  libatk1.0-0                   1.22.0-1   The ATK accessibility toolkit
ii  libc6                         2.7-13     GNU C Library: Shared libraries
ii  libcairo2                     1.6.4-6    The Cairo 2D vector graphics libra
ii  libfprint0                    0.0.6-2    fingerprint library of fprint proj
ii  libglib2.0-0                  2.16.5-1   The GLib library of C routines
ii  libgtk2.0-0                   2.12.11-3  The GTK+ graphical user interface 
ii  libpango1.0-0                 1.20.5-1   Layout and rendering of internatio

fprint-demo recommends no packages.

fprint-demo suggests no packages.

-- no debconf information