On Tue, Jan 1, 2013 at 2:43 AM, Mohamed HAMZAOUI <requin...@gmail.com> wrote:
> Hi,
> Happy new year for everyone :)
>
> I have a strange problem with libusbx 1.0.14 on windows 7
>
> when i run this test :
>
> status = libusb_init(&ctx);
>
> libusb_get_device_list(ctx,&list_devices);
>
> libusb_open(libusb_dev[dev_index], &handle);
>
> libusb_close(handle);
Why you close the handle and then open?
This should not be here.
> libusb_open(libusb_dev[dev_index], &handle);
>
> Here the libusb_open return -3 and debug messages is :
> libusbx: error [winusbx_open] could not open device
> \\.\USB#VID_0525&PID_A4A0#1_00000000#{A5DCBF10-6530-11D2-901F-00C04FB951ED}
> (interface 0): [5] Access Denied
Another thing, did you install a supported driver (like WinUSB)?
https://github.com/libusbx/libusbx/wiki/Windows-Backend#wiki-How_to_use_libusbx_on_Windows
--
Xiaofan
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