libusb error -12

[BERTRAND Joël]

	Hello,

	I'm trying to build a little piece of code that comes from NetBSD.
Target is Windows 10 Enterprise (64 bits) and up to date Cygwin.

	My code is linked with readline, and statically linked with a
cryptographic library, sqlite and libcyusbserial (a Cypress library that
is provided by Cypress). I have build libcyusbserial on NetBSD and Linux
and both libraries run as expected. This last library uses libusb 1.0.

	Under cygwin, I have built my program without trouble, but it is not
usable.

$ lsusb
...
Bus 001 Device 003: ID 04b4:0004 Cypress Semiconductor Corp.
Bus 001 Device 003: ID 04b4:0004 Cypress Semiconductor Corp.
...

	Device appears twice as is contains two different end points. Now, I
try to run my code.

$ ./sonde 1
...
CY:Error in opening the device... Libusb error is -12
CyGetDeviceInfo failure (3)

	I have tried to execute this code as administrator with the same
result. I don't understand why lubusb returns an error.

	Help will be welcome,

	JKB

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