在USB，C＃上读/写

Question

I use LibUsbDotNet to read data from USB with following code:

public static UsbDeviceFinder MyUsbFinder = new UsbDeviceFinder(Convert.ToInt32(0x046D), Convert.ToInt32(0xC06A));  
public static UsbDevice MyUsbDevice;  
MyUsbDevice = UsbDevice.OpenUsbDevice(MyUsbFinder);  

it doesn't work. can not find my USB device.
can you help me?!
you can download library and samples from here

Answer 1

Have you installed the necessary drivers? The help file for LibUsbDotNet says:

Before LibUsbDotNet can access a usb device on a Windows operating system the device must be installed with either WinUSB or libusb-win32 usb drivers.

Otherwise I can't see anything wrong with your code when compared to the examples.

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As an aside your use of Convert.ToInt32() is redundant. This will do the same thing:

public static UsbDeviceFinder MyUsbFinder = new UsbDeviceFinder(0x046D, 0xC06A);

But that has nothing to do with your problem.