138a:0007 scanner for EliteBook 8540w

[kostmo]

Hi, my computer is an HP EliteBook 8540w with a fingerprint scanner
having id 138a:0007.

My results in running the compiled code are similar to those of
penguin359. I have posted them at the bottom of this email.

I have written some Python scripts and generated plots of the URB
messages that I would like to contribute to this project, if desired.
Would I be able to join as a contributor?

Karl

==========================================

> Poke (-1)
---> 00 00 00 00 13 00 EC 1F 00 00 00 00 57 21 04
<--- 00 00

> Poke (-1)
---> 01 00 00 00 13 00 F0 1F 00 00 9F 29 01 00 04
<--- 00 00 CB 30 86 49 48 00 00 00 04 15 01 01 00 01 03 00 25 10 C7
65 42 01 81 01 00 00 00 00 01 00 00 00 00 00 00 00
*********** Seqnum mismatch, got 0000, expected 0001

> Poke (-1)
---> 02 00 00 00 13 00 F4 1F 00 00 DB DB DB DB 04
<--- 04 04
*********** Seqnum mismatch, got 0404, expected 0002

> Poke (-1)
---> 03 00 00 00 13 00 FC 1F 00 00 20 49 FB D4 04
<--- 04 04
*********** Seqnum mismatch, got 0404, expected 0003

> SetParam (-1)
---> 04 00 00 00 05 00 11 00 08 00
<--- 12 04
*********** Seqnum mismatch, got 0412, expected 0004

> Poke (-1)
---> 05 00 00 00 13 00 2C 50 FF 00 F0 EE 00 00 02
<--- 06 04
*********** Seqnum mismatch, got 0406, expected 0005

> Poke (-1)
---> 06 00 00 00 13 00 2E 50 FF 00 F0 F0 00 00 02
bulk read error -9
> Peek (6)
---> 06 00 00 00 12 00 E8 1F 00 00 04
bulk write error -9


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