[fprint] Support for my fingerprint reader 138a:003d Validity Sensors, where to start?

[gregory.bahde at laposte.net]

Hello, 

though I found some websites saying that you could build drivers for my fingerprint reader I never had it working. 

Is it's support supposed to get integrated? 

I remember having learned that to make its driver it was needed that I dumped some infos from the USB pot under windows but I don't remember where I read that. 

Well anyway, I wanna help build the open source driver for this - I hate typing passwords over and over-. 

Please, tell me how I can help? 

Below is its lsusb -v description 

Regards 

gregory bahde 
" 
Bus 003 Device 003: ID . 
Device Descriptor: 
bLength 18 
bDescriptorType 1 
bcdUSB 1.10 
bDeviceClass 255 Vendor Specific Class 
bDeviceSubClass 17 
bDeviceProtocol 255 
bMaxPacketSize0 8 
idVendor 0x138a Validity Sensors, Inc. 
idProduct 0x003d 
bcdDevice 1.04 
iManufacturer 0 
iProduct 0 
iSerial 1 00b07aab3692 
bNumConfigurations 1 
Configuration Descriptor: 
bLength 9 
bDescriptorType 2 
wTotalLength 46 
bNumInterfaces 1 
bConfigurationValue 1 
iConfiguration 0 
bmAttributes 0xa0 
(Bus Powered) 
Remote Wakeup 
MaxPower 100mA 
Interface Descriptor: 
bLength 9 
bDescriptorType 4 
bInterfaceNumber 0 
bAlternateSetting 0 
bNumEndpoints 4 
bInterfaceClass 255 Vendor Specific Class 
bInterfaceSubClass 0 
bInterfaceProtocol 0 
iInterface 0 
Endpoint Descriptor: 
bLength 7 
bDescriptorType 5 
bEndpointAddress 0x01 EP 1 OUT 
bmAttributes 2 
Transfer Type Bulk 
Synch Type None 
Usage Type Data 
wMaxPacketSize 0x0040 1x 64 bytes 
bInterval 0 
Endpoint Descriptor: 
bLength 7 
bDescriptorType 5 
bEndpointAddress 0x81 EP 1 IN 
bmAttributes 2 
Transfer Type Bulk 
Synch Type None 
Usage Type Data 
wMaxPacketSize 0x0040 1x 64 bytes 
bInterval 0 
Endpoint Descriptor: 
bLength 7 
bDescriptorType 5 
bEndpointAddress 0x82 EP 2 IN 
bmAttributes 2 
Transfer Type Bulk 
Synch Type None 
Usage Type Data 
wMaxPacketSize 0x0040 1x 64 bytes 
bInterval 0 
Endpoint Descriptor: 
bLength 7 
bDescriptorType 5 
bEndpointAddress 0x83 EP 3 IN 
bmAttributes 3 
Transfer Type Interrupt 
Synch Type None 
Usage Type Data 
wMaxPacketSize 0x0008 1x 8 bytes 
bInterval 4 
Device Status: 0x0000 
(Bus Powered) 
" 

----- Mail original -----

De: "Vasily Khoruzhick" <anarsoul at gmail.com> 
À: "Marcos Alano" <marcoshalano at gmail.com> 
Cc: fprint at lists.freedesktop.org 
Envoyé: Samedi 24 Octobre 2015 07:04:35 
Objet: <DKIM> Re: [fprint] Minutiae question 

Hi Marcos, 

On Fri, Oct 23, 2015 at 8:26 PM, Marcos Alano <marcoshalano at gmail.com> wrote: 
> Hello folks, 
> 
> How many minutiae is considered a match during verification? I can't 
> find this information on fprint documentation. 

We're using bozorth3 algo, which provides a matching score, not a 
count of matching minutiae. 
Bozorth3 threshold depends on driver, for most drivers it's 40 
(default value), for some drivers it's lowered. 

Regards, 
Vasily 

> Cheers. 
> -- 
> Marcos Alano 
> ---------------------------------------------- 
> P: Por que este email é tão curto? 
> R: http://five.sentenc.es 
> ---------------------------------------------- 
> _______________________________________________ 
> fprint mailing list 
> fprint at lists.freedesktop.org 
> http://lists.freedesktop.org/mailman/listinfo/fprint 
_______________________________________________ 
fprint mailing list 
fprint at lists.freedesktop.org 
http://lists.freedesktop.org/mailman/listinfo/fprint 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/fprint/attachments/20151026/3e981a8d/attachment.html>