Enable / disable specific USB port?

[Elaphe666]

Can AutoHotkey or any other program enable and disable a specific USB port. My idea is to have a USB fan connected to one of the ports of a USB hub and be able to control it from my computer. Thank you.

[Nextron]

Although it's possible to logically disable a USB root hub or perhaps individual ports, which would prevent devices from being detected. The fan is probably not a true USB device, but merely uses the USB's power line. The lines between ports maybe have some polarity protection, but aren't usually shut off or controlled. So turning the PC on or having a powered hub connected puts power on them, which keeps the fan on.

[Elaphe666]

Yeah, the fan only uses the USB power, so it's not detected in any way by the OS or the computer. I guess it's impossible then to start or stop it with a software solution. If that was not the case, this could be done with USBDEVIEW, which also works in the command line, so it can be integrated into a AHK script.

[garry]

I have an USB-hub with a illuminated switch to each usb port ... ( I like hardware )