Thank you for your answers!
So I must understand how the driver and the fingerprint reader works, as
it has been done in
https://github.com/nmikhailov/Validity90/blob/master/spec.md
So I must use wireshark to dump usb traffic, and dump memory of the
driver when it's in use. What other software could be useful?
Nuliel
Le 07/02/2021 à 18:08, Benjamin Berg a écrit :
Hi,
these readers are generally USB and writing a driver is easy purely
from a communication point of view.
However, the hard part is understanding the USB protocol. This requires
reverse engineering. As these are security devices, they usually are
much more complicated and are cryptographically secured. To implement a
driver, you would likely need to reverse engineer all that. You might
even need to access to secret keys in order to be able to communicate
with the device.
Benjamin
PS: The linked tutorial is not applicable here as the fingerprint
drivers are implemented all in userspace rather than the kernel.
On Sun, 2021-02-07 at 17:20 +0100, Gerard Berto wrote:
Hello,
I have a Dell Latitude E7270 with a fingerprint 0a5c:5834 with the
name
"Broadcom 5880".
I know that for the moment, there is no driver for it, and I would
like
to make this driver, but I've never done a driver on Linux.
I've found some links like
https://www.apriorit.com/dev-blog/195-simple-driver-for-linux-os to
create a driver, but it's not adapted for a fingerprint reader. Can
you
give me some advises and documentation to create a fingerprint
driver?
Thank you in advance,
Nuliel
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