The device path is useful for locating the USB device registry keys, where additional settings and information are stored for the device instance.

How to Fix USB Device Malfunctioned and Not Recognized in Windows 10/8/7/XP/Vista If your device is not recognized at the moment, you can try the below six solutions to make it show up again. Press and hold (or right-click) a device and select Uninstall. This method resolves steps where the currently loaded USB driver has become unstable or corrupted. From the list that appears, select Device Manager.

Expand Universal Serial Bus controllers. This application will provide information about almost all currently plugged-in USB device (see below for more info about the 'almost'). On an x86 system, the PCI card number, made up of the vendor ID and device ID, is displayed instead of usb in the prtconf output. Repeat for each device. Select Start, then type device manager in the Search box, and then select Device Manager. Leaving your computer configured this way shouldn't cause problems unless you plan on leaving the bootable USB device attached all the time. After setting your USB device as the first boot device, your computer will check it for boot information each time your computer starts. The information is contained in three bytes with the names Base Class, SubClass, and Protocol. Registry Keys Using Device Path Information. USB defines class code information that is used to identify a device’s functionality and to nominally load a device driver based on that functionality. For example, pci1022,7460, instance #0, is displayed instead of usb, instance #0. You can use the prtconf command's -D option to display additional driver information. A client can then query the device to work out its class and capabilities. Android 3.1 introduced USB hostmode which allows the user to plug USB devices to your Android tablet in the same way as a Desktop PC and extend its functionality (if the tablet has the correct drivers of course).

3. Update the USB Device Drivers. This method is also used if the USB device iSerial index is set to 0, indicating that the device does not have a serial string. A USB device provides information about itself in the form of descriptors. Scroll down to “Universal Serial Bus … To apply this solution to the “USB device not recognized” problem, you will need to follow the steps outlined below: Click Start and type in “Device Manager” in the search box. Two important properties on all USB devices are its Vendor ID (VID) and Product ID (PID