Hello,
I have started the journey to write a driver for this device (138a:003c), I own this device, its
built in to the HP Elitebook 8560w. From what i've gathered I need to sniff the USB data
from a working driver and send/receive the right data at the right moment with libusb.
So i'm currently dumping all the traffic, and when I scan a finger, I get ~84059 bytes from
the device back to the host, sometimes twice or thrice. There is more data sent and received
but this is the biggest bulk, so i'm thinking this is the image itself, is that a solid assumption
or could it be the device sends something else this large. Also, how can I check if it's true, is there
a way to transform the bytes into an image just to see if its right? How can I make sure it's not encrypted,
and if it's encrypted what are my options?
Thanks in advance,
J. Daniel
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