Created attachment 42663 [details]
lsusb -v output
I seem to be encountering "Enroll failed with error -22" every time I to use the reader. I've attached the logs as requested.
The binaries are compiled with ./configure --prefix=/usr/ --enable-debug-log against the latest git sources.
Created attachment 42664 [details]
logs from sudo examples/enroll 2> enroll.log
I have the same problem. Seems to exists in 0.3.0 and 0.4.0.
Fixed for me (Lenovo T410i,
blackknight ~ # udevadm info --export-db | grep 147e
E: PRODUCT=147e/2016/2 )
everything up to and including 0.5.1 did not work