Programmatically Resume a USB Device (Windows OS)

Question

USB

It is known that before pulling out a USB flash drive from the port, you must first safely remove it. This is easy to do, given that the WinAPI provides special. function for this (despite all the nuances, the problem seems to be solved ).

And how can I return the device to the active state without removing it from the USB port ? USB Safely Remove and Zentimo xStorage Manager can do this:

Answer 1

You probably need to dig in the direction of "SetupDiCallClassInstaller" ... here is a code example, though in Delphi:
programmersforum.ru/showpost.php?p=31168&postcount=12
with the functionality you need.

Answer 2

I'm sorry, but isn't there another special function nearby for installing the device?
By the way, in the same article there is a link to another one , which describes the trick with error code 21 instead of 47 if the user is an administrator.

Answer 3

USB Safely Remove, when trying to return the device, somehow asked me: they say, am I sure that a wifi module is not plugged into the adjacent port of the same hub? And he promised problems with the network in case of a positive answer. Therefore, I suspect that when the device is returned, the usb controller is juggling, and not the magical return of a separate device.
But of course, these are just my speculations and I don’t understand the problem at a low level, so I recommend contacting the USB SM developers; I think they are Russian and quite adequate.