[fprint] aes3400

pietrek -- pietrek.j at gmail.com
Sun Dec 1 02:15:01 PST 2013

Thanks for your reply
In datasheet you linked are general information only.
I found it earlier but I think it's more advertisement than documentation.

I used AES3500 driver instead of AES4000 but image is still pale.
DATA_BUFLEN is set correctly. When I changed it to value for aes3500, I 
got an error:
sync:error [fp_dev_img_capture] unrecognised return code -5
image capture failed, code -22

FRAME_WIDTH is good too becouse fingerprint shape isn't broken.

Earlier I got images clearly black, but now images are pale.
I think it could be a problem with voltage or something related.
Have you any idea which init_reqs could I manipulate to improve quality?
     Piotr Jarosz

On 12/01/13 09:33, Juvenn Woo wrote:
> Hi Piotr,
> The dimension params (DATA_BUFLEN or so) seems not right from your 
> image. Please have a look at aes3500.c and aes4000.c from latest git repo:
> http://cgit.freedesktop.org/libfprint/libfprint
> Also, I've found the datasheet if you don't have already, which looks 
> a lot like aes3500's:
> http://www.digchip.com/datasheets/parts/datasheet/566/AES3400.php
> --
> jv ♫
> On Sun, Dec 1, 2013 at 7:14 AM, pietrek -- <pietrek.j at gmail.com 
> <mailto:pietrek.j at gmail.com>> wrote:
>     Hi,
>     I'm trying to add aes3400 support, but I get pale image(example in
>     attachment) and enroll fails.
>     Have you any idea which parameters should I scale to improve image
>     quality?
>         Piotr Jarosz
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