[fprint] Driver skeleton

Patrick Marlier patrick.marlier at gmail.com
Sat Jan 28 19:35:50 PST 2012

Hi Suco,

I guess you can have a look at this:
And particularly at this:

Since you do not have the specifications, I would advice you to start 
writing a C (or whatever) program to play with your device.

About your sniffing, I guess you missed all the initialization of the 
driver. Did you deactivated your device before to start the capture?

Good luck with the analysis of frames and so on (I did a lot of work but 
sadly due to no interest of people I will probably have to keep it 


On 01/28/2012 12:04 PM, Suco wrote:
> Hi Bastien,
>    I don't have the specs, only some sniffed data from windows
> enviroment. In fact, the reader is very basic, it only needs
> initialization and then request a scan(it returns a image). I'm going to
> do some trials with the most basic driver you've indicated. I also
> attach the data sniffed in case somebody want to take a look :P
> Regards.
> On Sat, Jan 28, 2012 at 5:40 PM, Bastien Nocera <hadess at hadess.net
> <mailto:hadess at hadess.net>> wrote:
>     Em Sat, 2012-01-28 às 12:57 +0100, Suco escreveu:
>      > Hello,
>      >   I'm working on the migration of a small company from windows to
>      > linux. One of the features that the want to keep is their fingerprint
>      > login. The brand and model is Nitgen HFDU04, but currently it doesn't
>      > have support in linux, nor fprint. I'm interested in developing a new
>      > driver, but first I would to ask if there is any kind of new driver
>      > skeleton, or guidelines, to know how to start developing.
>     If you have the specs, best start from an existing driver of the same
>     type (imaging, or non), strip it out, and replace with your code. We
>     have quite a few working drivers as examples :)
>     Cheers
> --
> Felix
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