[fprint] 1307:1171 Transcend Fingerprint Reader

[Vasily Khoruzhick]

On Thu, Nov 29, 2012 at 12:24 PM, Benjamin Lim <mail at limbenjamin.com> wrote:
> Hi,

Hi Benjamin,

> I dont mind working on the driver as long as i have someone to guide me
> through the process.

Join #fprint channel at irc.freenode.org

> I have looked through the git repo for libfprint. However, I am not very
> clear as to which parts have to be written to support a new device.
>
> From what I understand, i need to sniff the usb packets to determine what
> data is sent during startup,idle and while reading the prints. Then i need
> to write C source with functions to detect the state of the reader and read
> in the data and transmit it over the internal API for processing?

Usually I write simple prototype just to retrieve image from scanner, see
https://github.com/anarsoul/fprint_aes1660 and
https://github.com/anarsoul/fprint_aes2550
Then I move working skeleton into libfprint driver

> The enrollment, storage and verification process are all being performed by
> a standard library?

Yep, driver just needs to provide image to the library.

Regards
Vasily

> Thanks
> Ben