Turn off usb power  


  1. chasebook
    Posts : 2
    Win7 x64
       New #1

    Turn off usb power


    Hi *,

    I am looking for a way to turn off/on the 5V power supply for an USB device. The purpose is to reset a uC (not my uC) which is powered via USB.

    Is there an API tho achieve this? I found the option "usb selective suspend " for power saving and I thought there is a way to do this.


    Kind regards
    Franz
      My Computer
    Quote Quote

  3. Berton
    Posts : 1,519
    Windows 7 Ultimate 64-bit, Windows 8.1 64-bit, Mac OS X 10.10, Linux Mint 17, Windows 10 Pro TP
       New #2

    What is a uC?
      My Computer
    Quote Quote

  4. NoN
    Posts : 4,166
    Windows 7 Professional SP1 - x64 [Non-UEFI Boot]
       New #3

    Is that not a hardware Control Unit?

    In the Bios settings you should have also a way to turn off some of the usb ports unused, but that is not an external switch and will be permanent when logging into a windows session, therefore you'll have to go back in Bios to renable the ports.
      My Computer
    Quote Quote

  6. chasebook
    Posts : 2
    Win7 x64
    Thread Starter
       New #4

    Hey,

    uC => micro controller,

    It is a measurement product, but the company missed to program a watchdog or a hardware reset. So the only possibility to reset the USB powered uC to turn of the 5V and turn it on again.

    So bios is not the solution I like.

    Kind regards
    Franz
      My Computer
    Quote Quote

  7. Layback Bear
    Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       New #5

    Is this a company computer?

    Does this company have a I.T. department?
      My Computer
    Quote Quote

 

  Related Discussions
So for the past 2-3 weeks, my PC has not been powering on. At first, this was only occasional and did not happen every day. But now, my PC has power to the mobo and won't turn on when I push the on button on my case. Rarely, if I keep the motherboard powered, the PC will just turn on by itself at...
How do I turn off the USB Power?
in Hardware & Devices

Hi All! :) I have windows 7 32 bit Ultimate and when I eject the USB drive the power to the USB drive stays on which I believe is a "feature" in my version of windows. While windows says it is safe to remove the device it still makes me uncomfortable seeing the USB drive has power on it. Any way...
Power led won't turn on
in Hardware & Devices

Hi, This is a non-urgent question. It's just a power led not lighting up. It's a friend's PC. He told me it used to power up when the PC was new, but after he took it to a service tech it didn't turn on when it came back, neither did the HD led. Well the HD led did turn on, it was just that...
I don't know whether this would matter If I'm asking this question In a windows 7 forum \ Linux forum whatever but I am running 7. Say If I open up my desktop computer and do something\add something to the wireing of the power button , would I then be able to turn my computer with A wireless...
Okay, so. I know everyone has heard this scenario, and I have done a good amount of time on google searching for an answer, and have yet to come across something that helped. What happened: Overnight on Tuesday we had a pretty wicked thunderstorm which knocked our power out when I was...
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

 © Designer Media Ltd
All times are GMT -5. The time now is 22:20.
Find Us