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NI-VISA vs HID detection

Hello, hello,

OK, not really a CVI question, but here goes...

 

I have a custom USB device for which I defined a custom driver with the VISA wizard. On one version of WinXP (sorry, this stuff doesn't work on Win10, I gave up) it shows as a [NI-VISA USB devices][Simple HID Device Demo] and it gets detected fine by VISA and MAX.

 

On another WinXP, it shows as two separate HID devices and doesn't work.

 

I've tried uninstalling the drivers, reinstalling VISA, etc, but it still doesn't work. Any idea ? I think some other driver is grabbing it but I can't tell what (libusb ? libhid ?)

 

Thanks

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