Hi Kunal,

thank for feedback and patch.

I will investigate on the two issues, could you send me the log ?

The issues you report are occasional or systematic ?

Bye
Sergio

Il giorno dom, 27/02/2011 alle 16.20 +0530, Kunal Gangakhedkar ha
scritto:
> Hi Sergio,
> 
> Awesome work !!
> Got the patch working on my HP dv6 notebook having the VFS101 sensor.
> 
> Two issues:
> o.    on my sensor, the img_screen() function was always returning
>       image height = 1. I added a fp_dbg() call to dump the values 
>       in the loop variables to figure out what was going on.
>       The 'break' statement in the 'find bottom of image' part
>         is not correct since it aborts the screening prematurely.
>         Due to this break, the screened image height always ended up = 1
>         in my case.
> 
>               This happens even during the enrollment phase.
>       I have the logs dumped - let me know if you want to take a look at them.
> 
> o.    during verification, if I end up just touching the sensor and lifting 
> the 
>       finger, I get a message 'Unexpected finger find, remove finger from 
> sensor'.
>       But, it goes into an infinite loop with the same msg since the device's 
>       bufffer still contains the old image data. The device buffer needs to be
>       flushed upon any such error conditions.
> 
> I'm attaching a patch on top of your code that tries to fix both the problems.
> Please let me know if it looks OK.
> 
> Thanks,
> Kunal
> 
> On Friday 25 Feb 2011 2:19:23 pm Sergio Cerlesi wrote:
> > Hi all,
> > 
> > i finish to write the driver fo Validity VFS101. I use it for a couple
> > of day with good result.
> > 
> > For verify the implementation i need tester. If i receive positive
> > feedback i will work to merge it into library.
> > 
> > Attached the patch for libfprint 0.3.0. To compile it run:
> > 
> > autoreconf && ./configure && make
> > 
> > Important: the match score is much variable (on my experience from 10 to
> > 100) so, to have a good chance to match the fingerprint, it's much
> > important who scan is done. I use fprint_demo to find the best way to
> > scan my finger.
> > 
> > Waiting feedback.
> > 
> > Bye
> > Sergio
> > 
> 


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