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To: cygwin@cygwin.com
Subject: libusb error -12
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Message-ID: <5c19e340-fbc1-35b4-c3e1-d2ea36b4b958@systella.fr>
Date: Tue, 26 Nov 2024 13:15:07 +0100
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	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
=2E..
Bus 001 Device 003: ID 04b4:0004 Cypress Semiconductor Corp.
Bus 001 Device 003: ID 04b4:0004 Cypress Semiconductor Corp.
=2E..

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

$ ./sonde 1
=2E..
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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