 | WinUsbNet: .NET class library for WinUSB.sys |
The WinUsbNet class library gives .NET managed code direct access to USB devices through WinUSB, the generic USB device driver included with Windows.
This project is intended for developers who are creating their own USB device. Using WinUsbNet eliminates the need to understand anything about Windows device drivers. If you know what a USB endpoint is and can use the .NET Framework class Stream, you know enough to transfer data between your application and your USB device.
Getting StartedStart with the WinUsbManager class.
WinUsbNet Test AppTo use the WinUsbNet Test App, first copy and paste the GUID that WinUSB uses to identify the device. Clicking the Find button will cause a search for any matching devices already attached. The app will also track as devices are attached and detached.
Tooltips are used to explain the usage of each element on the interface. Take a moment to hover the mouse over the various controls. Controls can become enabled or disabled depending on the endpoint and direction selected.
To transfer data, select an endpoint from the dropdown. Most endpoints are either In or Out, but it is possible for a single endpoint to be both. To read data from an In endpoint, just set the number of bytes to read in the Read Length box (decimal) and click the Transfer Data button. The data will show up as hex bytes in blue in the output window. To send data to an Out endpoint, enter the data in the Out Data (hex) text box as a sequence of hex bytes separated by spaces, then click the Transfer Data button. The data you send will be displayed in the output window in green.
If relevant to your application, you can perform a USB control transfer by selecting “Control” from the Endpoint dropdown. This will enable the group box labeled Control Transfer (hex values), where you can enter the specifics. You will need to understand USB control transfers, although some basic help is available in tooltips.