I took a chance on a £20 fingerprint reader which turned out to be a FoculTech device which reports as USB 2808:93a9. This is listed in the unsupported devices on the libfprint wiki.
I'm interested in writing a driver for the device. I've some experience with interacting with hardware over USB but have never looked at fingerprint readers or libfprint before. I see on the wiki that a file "usb_dumps.txt" is linked for this device but this seems to be a broken link. Is this file available somewhere? Has anyone made progress towards a wireshark dissector? Has anyone contacted FocalTech to ask if there is documentation they would be willing to share for the device? They have a github with an open driver for a touch screen so might be willing to release something. Thanks for any pointers, Tom Cook
