[fprint] U.are.U 4000 freeze when running enroll

[Yao]

Hi all.
Now I have recompiled the fprint package with --ennale-debug-log parameter
on Ubuntu9.04.
When I run the enroll command:
--------------------------------------------------------
#cd libfprint-0.0.6/
#sudo ./example/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 uru4000
fp:debug [register_driver] registered driver aes1610
fp:debug [register_driver] registered driver aes2501
fp:debug [register_driver] registered driver aes4000
fp:debug [register_driver] registered driver upektc
fp:debug [register_driver] registered driver fdu2000
fp:debug [find_supporting_driver] driver uru4000 supports USB device
05ba:0007
Found device claimed by Digital Persona U.are.U 4000/4000B driver
uru4000:debug [get_hwstat] val=03
uru4000:debug [set_hwstat] val=83
uru4000:debug [fix_firmware] looking for encryption byte at 510
uru4000:debug [fix_firmware] data: 21 10 01
uru4000:debug [fix_firmware] that's not the encryption byte :(
uru4000:debug [fix_firmware] looking for encryption byte at 62d
uru4000:debug [fix_firmware] data: 0f e0 f2
uru4000:debug [fix_firmware] that's not the encryption byte :(
uru4000:debug [fix_firmware] looking for encryption byte at 792
uru4000:debug [fix_firmware] data: ff 07 41
uru4000:debug [fix_firmware] spotted the encryption byte!
uru4000:debug [fix_firmware] encryption byte at 793 reads 07
uru4000:debug [fix_firmware] encryption already disabled
uru4000:debug [set_hwstat] val=03
uru4000:debug [get_hwstat] val=00
uru4000:debug [get_irq_with_type] type=56aa
uru4000:debug [get_irq] irq type 56aa
fp:debug [fp_dev_open]
Opened device. It's now time to enroll your finger.

You will need to successfully scan your finger 1 times to complete the
process.

Scan your finger now.
fp:debug [fp_enroll_finger_img] uru4000 will handle enroll stage 0/0
(initial)
fp:debug [fpi_imgdev_capture] uru4000 will handle capture request
uru4000:debug [set_mode] 10
uru4000:debug [get_irq_with_type] type=0101
uru4000:debug [get_irq] irq type 0200

---------------------------------------------------------------------------
then the console stops there.

Now I try to read the source code to get some detail.

Anyone can help me?

Thanks.

-- 
Qi Yao
School of Information Science & Engineering  Lanzhou University
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