This is a difficult one: We have a test rack, that has two 12-port usb-hubs feeding the trip-lite usb-to ethernet extenssion cables.. Total of 24 UUTs are bieng tested asynchronously via test-stand sequence. At the end of each sequence the device is put to sleep. The goal of this test is to wake it up from the sleep mode and confirm that it wakes up. The only way of accomplishing this so far is to physically reconnecting the usb to the device (disconnect - then - reconnect) I want to be able to do this programmatically: the only way I could think of ad-hoc is to design an adapter board which will trip the D+ (and D- as well?) line with a relay. Obviously some code to confirm that a device has remaped to the same COM port it was assigned earlier would be needed as well. Can someone a) confirm this will be idencticaly to disconnecting the usb mannually b) point me to a possible existing solution where one can remotely enable/disable ports on a usb hub c) have other ideas to throw my way. Thanks for the help and let me know if more details help.

LabVIEW

Need to cycle the USB connection to a DUT

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Yeah, I have contacted the retailer, they obviously have no clue, wether the controller on the hub has the PPPS or not. https://www.usbgear.com/USBG-12U2ML.html is the device.

Plus, your article specifies a linux kernel interface, which would require writing some sort of API to work in windows or spinning up a virtual Linux machine. I have found some USB hubs where one can control the power to usb hubs but they seem to have very limited number of expension slots ( really need 12 / hub) and the price is astronomical.