free instals USB Device Tree Viewer 3.8.6

Note: The author has some great practical info about USB controllers/hubs/devices on the tool’s page.

Demanded Current is the current (in amps) that the device demanded.Device Connection Speed is the actual speed of the connected device.Device maximum Speed is the maximum speed of the connected device.Port maximum Speed is the maximum speed supported by the port.Product ID shows the hex ID of the product connected at that port.Vendor ID shows the hex ID of the vendor and their name.CompanionPortChain is a port chain of the companion port of this port.CompanionPortNumber is the companion port of this port in the companion hub (there are usually two hubs with the same ports, but different speeds).This port chain identifies a connected device and can be used with the other tools by this author to restart a USB port. For example: 1-4-2-1 means ports 1, 4, 2 have hubs and the final port 1 is where the device is connected. Port Chain is the unique path from the root hub down to a particular device.Some of the information for a port in the right pane that I find useful: You may need to open this application as Administrator to do that. If a device is not working correctly, right-click it and choose Restart Device.

Look in the right pane for the error name associated with the error number. Show yellow circle with exclamation (!) or error number when the device has an error.Shows the drive letter for USB storage devices.Highlights newly removed devices in red.Highlights newly added devices in green.Shows the actual name of the device (and not just the device type) in the tree view itself.Shows the high-speed (H), full-speed (F) and super-speed (S) designation on the tree icons itself.Some of the nice features in this tool that I like: This tool has all the features of the USBView tool, since it is based on that source code, with extra features added on top. Detailed information of each node in the tree is shown in the right pane. It can be used to view the tree of USB controllers, hubs, ports and devices connected to those ports. The USB Device Tree Viewer, also called USBTreeView, is a Windows tool created by Uwe Sieber.

Free instals USB Device Tree Viewer 3.8.6