![Finally got serial ports working, win7 host, if you have "Failed to attach the USB device (E_INVALIDARG)" issues then try deleting this win7 registry key, fixed mine. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{ 36FC9E60-C465-11CF-8056 ... Finally got serial ports working, win7 host, if you have "Failed to attach the USB device (E_INVALIDARG)" issues then try deleting this win7 registry key, fixed mine. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{ 36FC9E60-C465-11CF-8056 ...](https://external-preview.redd.it/R6D416r_3MRxLJzYQpNrBMsWKtbYzrIraHlNKY-o6TE.jpg?auto=webp&s=a50e29c515203c728f1f2fe89c51b0cf8e8f3403)
Finally got serial ports working, win7 host, if you have "Failed to attach the USB device (E_INVALIDARG)" issues then try deleting this win7 registry key, fixed mine. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{ 36FC9E60-C465-11CF-8056 ...
![WD MyPassport SSD Wifi only USB 2 Connection when connected to PC - My Passport Wireless - WD Community WD MyPassport SSD Wifi only USB 2 Connection when connected to PC - My Passport Wireless - WD Community](https://global.discourse-cdn.com/wd/optimized/3X/b/e/be9afb2497cf5ade44d2bb42d5e569761f6bf335_2_690x350.png)
WD MyPassport SSD Wifi only USB 2 Connection when connected to PC - My Passport Wireless - WD Community
![inav 6.1.1 cli msc enter usb mode, request for the USB device descriptor failed. · iNavFlight inav · Discussion #9155 · GitHub inav 6.1.1 cli msc enter usb mode, request for the USB device descriptor failed. · iNavFlight inav · Discussion #9155 · GitHub](https://user-images.githubusercontent.com/1296171/250420151-bce1458b-4259-400c-b703-0ca2312bdae9.png)
inav 6.1.1 cli msc enter usb mode, request for the USB device descriptor failed. · iNavFlight inav · Discussion #9155 · GitHub
![TUSB2036: downlink device not enumerating (any longer): USB device needs more power than the port can supply - Interface forum - Interface - TI E2E support forums TUSB2036: downlink device not enumerating (any longer): USB device needs more power than the port can supply - Interface forum - Interface - TI E2E support forums](https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/138/4011.usbview.png)