Hi,
I have a USB device that periodically hangs. Reboot or re-plug helps, but I need something lighter. I've seen several discussions on the problem of resurrecting hanging USB devices, but their solutions seems devices specific. Non on them worked in my case. I tried ioctl with USBDEVFS_RESET among other methods. uhubctl didn't work too (it seems it only sees EHCI hub, while my device is USB3.0 and connected to XHCI).
Ideally the solution should depower a single USB connector to let the device fully reset and then get it connected back.