[fprint] upek 147e:2016 reverse engineering progress

[Daniel Drake]

Daniel Drake wrote:
> Hi,
> 
> I just spent some time sniffing what UPEK's new libbsapi is doing, and 
> produced a libusb-1.0 app to do the same. It works - it captures image 
> data. I'm not totally clear on the format, but the output file looks 
> quite nice when plotted as 8 bit greyscale with a width of 2306 pixels 
> (although the fingerprint is repeated).

Updated version attached which works from cold boot. Also it now uses 
the hardware's finger detection capability and deinitializes the device 
after the scan.
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