Fingerprint reader only works as root [solved]

[nero37]

I got my fingerprint reader working using fprint from the wschlich-testing overlay. The problem is it only works as root and wont recognize the device as a normal user. So in other words i can use it for su but not sudo. The device is recognized as a usb device and i am part of the usb group. Anyone got any idea how to fix this? Thanks.

[yabbadabbadont]

What is the output of running, "ls -lR /dev/bus"?

[nero37]

/dev/bus:
total 0
drwxr-xr-x 9 root root 180 Apr 2 12:33 usb

/dev/bus/usb:
total 0
drwxr-xr-x 2 root root 60 Apr 2 12:33 001
drwxr-xr-x 2 root root 80 Apr 2 12:33 002
drwxr-xr-x 2 root root 60 Apr 2 12:33 003
drwxr-xr-x 2 root root 80 Apr 2 17:52 004
drwxr-xr-x 2 root root 60 Apr 2 17:52 005
drwxr-xr-x 2 root root 80 Apr 2 12:33 006
drwxr-xr-x 2 root root 80 Apr 2 12:33 007

/dev/bus/usb/001:
total 0
crw-rw-r-- 1 root usb 189, 0 Apr 2 12:33 001

/dev/bus/usb/002:
total 0
crw-rw-r-- 1 root usb 189, 128 Apr 2 12:33 001
crw-rw-r-- 1 root usb 189, 130 Apr 2 12:33 003

/dev/bus/usb/003:
total 0
crw-rw-r-- 1 root usb 189, 256 Apr 2 12:33 001

/dev/bus/usb/004:
total 0
crw-rw-r-- 1 root usb 189, 384 Apr 2 12:33 001
crw-rw-r-- 1 root usb 189, 386 Apr 2 17:52 003

/dev/bus/usb/005:
total 0
crw-rw-r-- 1 root usb 189, 512 Apr 2 12:33 001

/dev/bus/usb/006:
total 0
crw-rw-r-- 1 root usb 189, 640 Apr 2 12:33 001
crw-rw-r-- 1 root usb 189, 641 Apr 3 00:24 002

/dev/bus/usb/007:
total 0
crw-rw-r-- 1 root usb 189, 768 Apr 2 12:33 001
crw-rw-r-- 1 root usb 189, 769 Apr 2 12:33 002

[nero37]

Got it working! i created a new udev rule to allow unprivileged users access. i created the file /etc/udev/rules.d/fprint.rules and added the line;

[uprooter]

I had the same prob but this solution didn't work for me
after investigating in /proc/bus/usb I found out that the device was belonged to the scanner group.
just had to gpasswd -a user scanner.