How to programmatically unplug & replug an arbitrary USB device?

Question

I\'m trying to fix a non-responsive USB device that\'s masquerading as a virtual COM port. Manual replugging works, but there may be up to 12 of these units. Is there an API

Answer 1

In Eject USB disks using C# (The Code Project) look for this:

CM_Request_Device_Eject function

This is the SetupApi function that ejects a device (any device that can be ejected). It takes a device instance handle (or devInst) as input...