Well here is the bug report: Bug #998367 of the encrypted home user.
Coming back to the issue I believe this driver works relatively fine. But Ochir is right, the segmentation fault bug in this driver should be solve before merging to libfprint. Now, I believe that Andrej has abandoned the project, so I guess if anybody has an idea how to solve it, just commented.
Well here is the bug report: Bug #998367 of the encrypted home user.
Coming back to the issue I believe this driver works relatively fine. But Ochir is right, the segmentation fault bug in this driver should be solve before merging to libfprint. Now, I believe that Andrej has abandoned the project, so I guess if anybody has an idea how to solve it, just commented.