Hi,
img_capture worked, but enroll didn't. Subsequent attempts with img_capture 
failed with similar problem as enroll. Maybe device not released properly? Will 
try to reboot the laptop and if things change will post again.
Thanks for your efforts!

lsusb output:
...
Bus 001 Device 007: ID 04f3:0903 Elan Microelectronics Corp. 
...

uname -a
Linux Asus-UX430U 4.13.0-39-generic #44-Ubuntu SMP Thu Apr 5 14:25:01 UTC 2018 
x86_64 x86_64 x86_64 GNU/Linux

examples/img_capture
fp:debug [fp_init] 
fp:debug [register_driver] registered driver upekts
fp:debug [register_driver] registered driver aes3500
fp:debug [register_driver] registered driver aes4000
fp:debug [register_driver] registered driver aes2501
fp:debug [register_driver] registered driver aes2550
fp:debug [register_driver] registered driver uru4000
fp:debug [register_driver] registered driver vcom5s
fp:debug [register_driver] registered driver upeksonly
fp:debug [register_driver] registered driver aes1610
fp:debug [register_driver] registered driver aes1660
fp:debug [register_driver] registered driver aes2660
fp:debug [register_driver] registered driver vfs101
fp:debug [register_driver] registered driver vfs301
fp:debug [register_driver] registered driver vfs5011
fp:debug [register_driver] registered driver upektc
fp:debug [register_driver] registered driver upektc_img
fp:debug [register_driver] registered driver etes603
fp:debug [register_driver] registered driver vfs0050
fp:debug [register_driver] registered driver elan
fp:debug [find_supporting_driver] driver elan supports USB device 04f3:0903
fp:debug [find_supporting_driver] selected driver elan supports USB device 
04f3:0903
Found device claimed by ElanTech Fingerprint Sensor driver
sync:debug [fp_dev_open] 
async:debug [fp_async_dev_open] 
elan:debug [dev_init] 
async:debug [fpi_drvcb_open_complete] status 0
sync:debug [sync_open_cb] status 0
Opened device. It's now time to scan your finger.

sync:debug [fp_dev_img_capture] to be handled by elan
async:debug [fp_async_capture_start] 
fp:debug [generic_acquire_start] action 4
elan:debug [dev_activate] 
elan:debug [elan_activate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x5583508ce660 entering state 0
elan:debug [elan_run_cmd] 4019
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 0135
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508ce660 entering state 1
elan:debug [activate_run_state] FW ver 0x0135
drv:debug [__ssm_call_handler] 0x5583508ce660 entering state 2
elan:debug [elan_run_cmd] 000c
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 6000... (4 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508ce660 entering state 3
elan:debug [activate_run_state] sensor dimensions, WxH: 96x96
drv:debug [__ssm_call_handler] 0x5583508ce660 entering state 4
elan:debug [elan_run_cmd] 402a
elan:debug [elan_run_cmd] skipping for this device
elan:debug [elan_cmd_done] 
drv:debug [fpi_ssm_mark_completed] 0x5583508ce660 completed with status 0
elan:debug [activate_complete] 
elan:debug [elan_calibrate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 0
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 2a18... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_save_background] 
elan:debug [elan_save_frame] 
elan:debug [calibrate_run_state] FW does not support calibration
drv:debug [fpi_ssm_mark_completed] 0x5583508cad10 completed with status 0
elan:debug [calibrate_complete] 
fp:debug [fpi_imgdev_activate_complete] status 0
async:debug [fpi_drvcb_capture_started] 
elan:debug [dev_change_state] 1
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009985s
poll:debug [get_next_timeout_expiry] next timeout in 0.009963s
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] changing to 1
elan:debug [elan_capture] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 0
elan:debug [elan_run_cmd] 4031
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_read] skipping read, not expecting anything
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
fp:debug [fpi_imgdev_report_finger_status] finger on sensor
elan:debug [dev_change_state] 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] f617... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 3e1b... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 5a20... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] d51c... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 4f1e... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] ee1f... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 7f1e... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] transfer timed out
drv:debug [fpi_ssm_mark_aborted] error -110 from state 1
drv:debug [fpi_ssm_mark_completed] 0x5583508cad10 completed with status -110
elan:debug [capture_complete] 
elan:debug [elan_submit_image] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
assembling:debug [do_movement_estimation] calc delta completed in 0.059365 secs
assembling:debug [do_movement_estimation] calc delta completed in 0.034071 secs
assembling:debug [fpi_do_movement_estimation] errors: 171909 rev: 172560
assembling:debug [do_movement_estimation] calc delta completed in 0.033091 secs
assembling:debug [fpi_assemble_frames] height is 119
fp:debug [fpi_img_new] length=24336
fp:debug [fpi_imgdev_image_captured] 
elan:debug [dev_change_state] 3
fp:debug [fpi_imgdev_report_finger_status] finger removed
async:debug [fpi_drvcb_report_capture_result] result 0
elan:debug [dev_change_state] 1
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009994s
sync:debug [fp_dev_img_capture] result: complete
sync:debug [fp_dev_img_capture] ending capture
async:debug [fp_async_capture_stop] 
elan:debug [dev_deactivate] 
elan:debug [dev_change_state] 0
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009960s
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] changing to 0
elan:debug [elan_deactivate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x5583508cad10 entering state 0
elan:debug [deactivate_run_state] 
elan:debug [elan_run_cmd] 000b
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] already in 0
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_read] skipping read, not expecting anything
elan:debug [elan_cmd_done] 
drv:debug [fpi_ssm_mark_completed] 0x5583508cad10 completed with status 0
elan:debug [deactivate_complete] 
fp:debug [fpi_imgdev_deactivate_complete] 
async:debug [fpi_drvcb_capture_stopped] 
sync:debug [capture_stop_cb] 
fp:debug [fp_img_save_to_file] written to 'finger.pgm'
fp:debug [fp_img_save_to_file] written to 'finger_standardized.pgm'
sync:debug [fp_dev_close] 
elan:debug [dev_deinit] 
elan:debug [elan_dev_reset] 
async:debug [fpi_drvcb_close_complete] 
sync:debug [sync_close_cb] 
fp:debug [fp_exit] 
luca@luca-asus:~/git/libfprint$ sudo examples/img_capture
fp:debug [fp_init] 
fp:debug [register_driver] registered driver upekts
fp:debug [register_driver] registered driver aes3500
fp:debug [register_driver] registered driver aes4000
fp:debug [register_driver] registered driver aes2501
fp:debug [register_driver] registered driver aes2550
fp:debug [register_driver] registered driver uru4000
fp:debug [register_driver] registered driver vcom5s
fp:debug [register_driver] registered driver upeksonly
fp:debug [register_driver] registered driver aes1610
fp:debug [register_driver] registered driver aes1660
fp:debug [register_driver] registered driver aes2660
fp:debug [register_driver] registered driver vfs101
fp:debug [register_driver] registered driver vfs301
fp:debug [register_driver] registered driver vfs5011
fp:debug [register_driver] registered driver upektc
fp:debug [register_driver] registered driver upektc_img
fp:debug [register_driver] registered driver etes603
fp:debug [register_driver] registered driver vfs0050
fp:debug [register_driver] registered driver elan
fp:debug [find_supporting_driver] driver elan supports USB device 04f3:0903
fp:debug [find_supporting_driver] selected driver elan supports USB device 
04f3:0903
Found device claimed by ElanTech Fingerprint Sensor driver
sync:debug [fp_dev_open] 
async:debug [fp_async_dev_open] 
elan:debug [dev_init] 
async:debug [fpi_drvcb_open_complete] status 0
sync:debug [sync_open_cb] status 0
Opened device. It's now time to scan your finger.

sync:debug [fp_dev_img_capture] to be handled by elan
async:debug [fp_async_capture_start] 
fp:debug [generic_acquire_start] action 4
elan:debug [dev_activate] 
elan:debug [elan_activate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x55a4b8987570 entering state 0
elan:debug [elan_run_cmd] 4019
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 0135
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8987570 entering state 1
elan:debug [activate_run_state] FW ver 0x0135
drv:debug [__ssm_call_handler] 0x55a4b8987570 entering state 2
elan:debug [elan_run_cmd] 000c
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 6000... (4 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8987570 entering state 3
elan:debug [activate_run_state] sensor dimensions, WxH: 96x96
drv:debug [__ssm_call_handler] 0x55a4b8987570 entering state 4
elan:debug [elan_run_cmd] 402a
elan:debug [elan_run_cmd] skipping for this device
elan:debug [elan_cmd_done] 
drv:debug [fpi_ssm_mark_completed] 0x55a4b8987570 completed with status 0
elan:debug [activate_complete] 
elan:debug [elan_calibrate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 0
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] d517... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_save_background] 
elan:debug [elan_save_frame] 
elan:debug [calibrate_run_state] FW does not support calibration
drv:debug [fpi_ssm_mark_completed] 0x55a4b8983060 completed with status 0
elan:debug [calibrate_complete] 
fp:debug [fpi_imgdev_activate_complete] status 0
async:debug [fpi_drvcb_capture_started] 
elan:debug [dev_change_state] 1
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009986s
poll:debug [get_next_timeout_expiry] next timeout in 0.009965s
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] changing to 1
elan:debug [elan_capture] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 0
elan:debug [elan_run_cmd] 4031
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_read] skipping read, not expecting anything
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
fp:debug [fpi_imgdev_report_finger_status] finger on sensor
elan:debug [dev_change_state] 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] cb18... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 931d... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 1b1c... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] dc1b... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] e922... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 801b... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 6e1b... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 621e... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] ba1f... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 941f... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] df1a... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 851e... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 6f1f... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 55
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 2
elan:debug [elan_run_cmd] 0009
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] 871d... (18432 bytes)
elan:debug [elan_cmd_done] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 3
elan:debug [elan_save_img_frame] 
elan:debug [elan_save_frame] 
drv:debug [__ssm_call_handler] 0x55a4b8983060 entering state 1
elan:debug [elan_run_cmd] 403f
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_cb] transfer timed out
drv:debug [fpi_ssm_mark_aborted] error -110 from state 1
drv:debug [fpi_ssm_mark_completed] 0x55a4b8983060 completed with status -110
elan:debug [capture_complete] 
elan:debug [elan_submit_image] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
elan:debug [elan_process_frame_thirds] 
assembling:debug [do_movement_estimation] calc delta completed in 0.098780 secs
assembling:debug [do_movement_estimation] calc delta completed in 0.078846 secs
assembling:debug [fpi_do_movement_estimation] errors: 130410 rev: 169394
assembling:debug [do_movement_estimation] calc delta completed in 0.079270 secs
assembling:debug [fpi_assemble_frames] height is 76
fp:debug [fpi_img_new] length=18144
fp:debug [fpi_imgdev_image_captured] 
elan:debug [dev_change_state] 3
fp:debug [fpi_imgdev_report_finger_status] finger removed
async:debug [fpi_drvcb_report_capture_result] result 0
elan:debug [dev_change_state] 1
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009996s
sync:debug [fp_dev_img_capture] result: complete
sync:debug [fp_dev_img_capture] ending capture
async:debug [fp_async_capture_stop] 
elan:debug [dev_deactivate] 
elan:debug [dev_change_state] 0
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009979s
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] changing to 0
elan:debug [elan_deactivate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x55a4b8984b20 entering state 0
elan:debug [deactivate_run_state] 
elan:debug [elan_run_cmd] 000b
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] already in 0
elan:debug [elan_cmd_cb] 
elan:debug [elan_cmd_read] 
elan:debug [elan_cmd_read] skipping read, not expecting anything
elan:debug [elan_cmd_done] 
drv:debug [fpi_ssm_mark_completed] 0x55a4b8984b20 completed with status 0
elan:debug [deactivate_complete] 
fp:debug [fpi_imgdev_deactivate_complete] 
async:debug [fpi_drvcb_capture_stopped] 
sync:debug [capture_stop_cb] 
fp:debug [fp_img_save_to_file] written to 'finger.pgm'
fp:debug [fp_img_save_to_file] written to 'finger_standardized.pgm'
sync:debug [fp_dev_close] 
elan:debug [dev_deinit] 
elan:debug [elan_dev_reset] 
async:debug [fpi_drvcb_close_complete] 
sync:debug [sync_close_cb] 
fp:debug [fp_exit] 


sudo examples/enroll 
This program will enroll your right index finger, unconditionally overwriting 
any right-index print that was enrolled previously. If you want to continue, 
press enter, otherwise hit Ctrl+C

fp:debug [fp_init] 
fp:debug [register_driver] registered driver upekts
fp:debug [register_driver] registered driver aes3500
fp:debug [register_driver] registered driver aes4000
fp:debug [register_driver] registered driver aes2501
fp:debug [register_driver] registered driver aes2550
fp:debug [register_driver] registered driver uru4000
fp:debug [register_driver] registered driver vcom5s
fp:debug [register_driver] registered driver upeksonly
fp:debug [register_driver] registered driver aes1610
fp:debug [register_driver] registered driver aes1660
fp:debug [register_driver] registered driver aes2660
fp:debug [register_driver] registered driver vfs101
fp:debug [register_driver] registered driver vfs301
fp:debug [register_driver] registered driver vfs5011
fp:debug [register_driver] registered driver upektc
fp:debug [register_driver] registered driver upektc_img
fp:debug [register_driver] registered driver etes603
fp:debug [register_driver] registered driver vfs0050
fp:debug [register_driver] registered driver elan
fp:debug [find_supporting_driver] driver elan supports USB device 04f3:0903
fp:debug [find_supporting_driver] selected driver elan supports USB device 
04f3:0903
Found device claimed by ElanTech Fingerprint Sensor driver
sync:debug [fp_dev_open] 
async:debug [fp_async_dev_open] 
elan:debug [dev_init] 
async:debug [fpi_drvcb_open_complete] status 0
sync:debug [sync_open_cb] status 0
Opened device. It's now time to enroll your finger.

You will need to successfully scan your finger 5 times to complete the
process.

Scan your finger now.
sync:debug [fp_enroll_finger_img] 
async:debug [fp_async_enroll_start] starting enrollment
fp:debug [generic_acquire_start] action 1
elan:debug [dev_activate] 
elan:debug [elan_activate] 
elan:debug [elan_dev_reset] 
drv:debug [__ssm_call_handler] 0x5637264adb00 entering state 0
elan:debug [elan_run_cmd] 4019
sync:debug [fp_enroll_finger_img] elan will handle enroll stage 0/4
elan:debug [elan_cmd_cb] transfer timed out
drv:debug [fpi_ssm_mark_aborted] error -110 from state 0
drv:debug [fpi_ssm_mark_completed] 0x5637264adb00 completed with status -110
elan:debug [activate_complete] 
fp:debug [fpi_imgdev_activate_complete] status -110
async:debug [fpi_drvcb_enroll_started] status -110
sync:debug [sync_enroll_cb] result -110
sync:error [fp_enroll_finger_img] unrecognised return code -110
sync:debug [fp_enroll_finger_img] ending enrollment
async:debug [fp_async_enroll_stop] 
elan:debug [dev_deactivate] 
elan:debug [dev_change_state] 0
poll:debug [fpi_timeout_add] in 10ms
poll:debug [get_next_timeout_expiry] next timeout in 0.009981s
poll:debug [get_next_timeout_expiry] first timeout already expired
poll:debug [handle_timeout] 
elan:debug [elan_change_state] already in 0

^C

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https://bugs.launchpad.net/bugs/1641290

Title:
  [04f3:0903] Elan Microelectronics Corp fingerprint reader not
  recognised

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