[fprint] Some captures for unsupported UPEK 147e:1000 device

[Juan Jesús García de Soria Lucena]

NOTE: Message resent due to message size limit. The original
attachment may be found at:
http://skandalfo.dyndns.org:9999/hp/UPEK_capture.tar.bz2

Hi, Daniel and everyone else.

I own an Acer laptop sporting an unsupported UPEK swipe-type
fingerprint reader device.

Its lsusb info is this:

Bus 006 Device 002: ID 147e:1000
Device Descriptor:
 bLength                18
 bDescriptorType         1
 bcdUSB               1.00
 bDeviceClass            0 (Defined at Interface level)
 bDeviceSubClass         0
 bDeviceProtocol         0
 bMaxPacketSize0         8
 idVendor           0x147e
 idProduct          0x1000
 bcdDevice            0.33
 iManufacturer           1 TouchStrip
 iProduct                2 Fingerprint Sensor
 iSerial                 0
 bNumConfigurations      1
 Configuration Descriptor:
   bLength                 9
   bDescriptorType         2
   wTotalLength           39
   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           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0
     bInterfaceProtocol      0
     iInterface              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     0x02  EP 2 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     0x83  EP 3 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0004  1x 4 bytes
       bInterval              10
Device Status:     0x0000
 (Bus Powered)


It seems to be some variation of the TouchStrip thing.

As it is supported by the 32 bit BSAPI binaries, I enclose a .tar.bz2
with a series of captures:

 - open_1 and open_2 are the snoops of the Biometry sample application
"opening" the device, which I think should be considered as the
initialization steps. I looked a bit inside the upeksonly driver, and
I think the snooped sequence is some kind of superset of the upeksonly
one.

 - close_1 and close_2 are the snoops of the Biometry application
closing the respective open_N sessions.

 - add_1 and add_2 are complete enrollments.

 - add_pre_1 is an incomplete enrollment. I'm not sure about whether
the snoop includes data after the enrollment timed out with no finger
detected.

 - add_pos_1 is the second part of a successful enrollment (starting
after the application has begun waiting for a finger).

 - verify_2 is a successful and complete verification of a fingerprint.

 - verify_pre_1 is a pre-finger part of a successful verification.

 - verify_pos_1 is a finger-to-end part of a successful verification.

I hope this information helps you guessing how this device works.

It is the last unsupported device on my laptop after I contributed an
infrared port driver (wpc8769l)  to LIRC and Antti Palosaari wrote
another (ce6230) that can drive the integrated AVerMedia A310 DVB-T
tuner.

If the device operation happens to be easy to ascertain, I myself
could write a driver or extend the upeksonly one (given I find the
required time).


Best regards, and thanks in advance,

  Juan Jesus Garcia de Soria.

--
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change the world.