Re: LIBUSB_ERROR_NOT_SUPPORTED

[Peter S. <pe...@st...>]

qin__23 wrote:
> However, when I attempt to lisbusb_open() to connect to my desired USB
> device I get LIBUSB_ERROR_NOT_SUPPORTED.
> 
> I have already installed the USB product's driver (the company provided it),
> and it shows up correctly when I enumerate. 
> 
> What could be causing this error?

The fact that you installed the vendor's driver for the device.

In order to use libusb on Windows you need to install the WinUSB.sys
kernel driver for your device, instead of what the vendor provided.

(Smart vendors will also use WinUSB.sys, and then libusb can access
the device directly, but most vendors are not yet using WinUSB.)


//Peter