Is it possible to cut power from a USB bus header and re-power it on and have Windows still recognize it? As you can probably assume I'm getting pretty desperate for some solution to turn off power to USB ports without rebooting the PC.
Why are you looking to do this?Is it possible to cut power from a USB bus header and re-power it on and have Windows still recognize it? As you can probably assume I'm getting pretty desperate for some solution to turn off power to USB ports without rebooting the PC.
Why not run them from an external USB hub, with its own power switches?I'm using some lidars for an experiential installation and in short they sometimes just lock up unless power is totally cut from them
because the switch needs to be able to be controlled programmatically and automagicallyWhy not run them from an external USB hub, with its own power switches?
Drawing out the requirements one by one isn't going to work.because the switch needs to be able to be controlled programmatically and automagically
Given a powered USB hub, when you turn it on, Windows recognizes it.makes sense to me, I figured as much. which is why I'm wondering if I were to disconnect and reconnect that USB power through a relay or other means of electrical disconnection, would Windows be able to recognize it as being reconnected while it's running? or would that just require a system restart anyway?
Assuming this is going to a Type-A port, isolate the 5V line from it, run it through a solid-state relay, then have something else controlling the input to the relay.yes i know that does, but i can't unplug/replug in this long-term installation. i know the issue isnt anything automated - my question has been about adding in a power switch between the motherboard and the USB bus and how Windows would react to that, I would end up automating that solution myself if Windows would recognize an unpowered and then re-powered USB bus