On Sun, Sep 15, 2013 at 8:08 PM, Ramon Zambelli
<ramon.zambe...@bluewin.ch> wrote:
> I have a device which used WCID to install WinUSB drivers. The driver
> installs automatically as expected, but when I try to open the device
> using libusbx 1.17 I get error -12 (ERROR_NOT_SUPPORTED). I'm using
> windows 8.
> Using zadig I see that the driver installed is WINUSB (v6.2.9200.16384)
> which is newer than the version proposed by zadig. Is this version
> supported by libusbx? Is there any other reason why I can't open the
> device correctly?

I think WinUSB version should not be the problem.
Please post the debug log (eg: xusb -d yourvid:yourpid).

There was a report on Windows Server 2012 that libusbx has
problem with device using WinUSB driver.
https://github.com/libusbx/libusbx/issues/119

One way to check is to use Zadig to install WinUSB driver to
see if then libusbx work or not. I bet it should work.


-- 
Xiaofan

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