USB DEBUGGING WINDOWS 10 SOFTWARE

What's weird is that a) Microsoft's documentation says they use a bmRequest value of 0xC1 which corresponds to USB_REQ_RECIP_DEVICE | USB_REQ_TYPE_VENDOR | USB_REQ_DIR_IN Which I assume means that it is using an interface request for the Extended Properties, and wIndex gets set to the interface number (it should be 5 for Extended Properties). the Extended Properties, assuming the device answers both equally. To work around that, we can force a Device Request for WinUSB has a limitation that forces wIndex to the interface number when issuing For some reason if I don't use the xusb -w option, the Extended Properties query fails with a pipe error. Lots of stuff is cached by Windows, so to aid debugging it helps to change your VID or PID every time.Ĥ. Use USB_DEVICE_SPECIFIC_REQUEST instead.Ģ. If using ASF, don't use UDI_VENDOR_SETUP_OUT_RECEIVED to handle the Compat ID and Extended Properties. I added an infinite blinking light loop to see if 0圎E is ever queried but the code doesn't get that far. Unfortunately the documentation for it is much worse so I haven't used that method.Īnyway, here is my code. Has anyone ever done anything like this? Or have any experience of debugging it? Is there a way I can manually query USB string descriptors in Windows?Īlso, there are actually two methods for configuring WinUSB devices - the second uses USB's Binary Object Store (BOS) instead of the 0圎E string because apparently it is more reliable. Unfortunately, the code I'm using never seems to get to the point where 0圎E is queried. It basically makes custom devices plug-and-play on Windows. According to Microsoft's documentation, when you plug in a USB device Windows (8 and later) automatically queries the 0圎E string, and if present and correct it will automatically load the WinUSB driver. A WinUSB device has a special USB string descriptor at 0圎E that contains information about the device.

USB DEBUGGING WINDOWS 10 SOFTWARE

I'm trying to create a WinUSB device using a SAM3X microcontroller and the ASF (it's an Arduino Due but I ported it to mBed using ASF since Arduino's software is shit).

Usb debugging windows 10