uhubctl
uhubctl is utility to control USB power per-port on smart USB hubs. Smart hub is defined as one that implements per-port power switching.
Original idea for this code was inspired by hub-ctrl.c by Niibe Yutaka: http://www.gniibe.org/development/ac-power-control-by-USB-hub
Compatible USB hubs
Note that very few hubs actually support per-port power switching. Some of them are no longer manufactured and can be hard to find.
This is list of known compatible USB hubs:
| Manufacturer | Product | VID:PID | Release | EOL |
|---|---|---|---|---|
| AmazonBasics | HU3770V1, 7 Port USB 3.0 Hub with 12V/3A Power Adapter | 2109:2811 |
2013 | |
| Anker | AK-A7518111 | 2015 | ||
| Apple | Thunderbolt Display 27" (internal USB hub) | 2014 | ||
| Apple | USB Keyboard With Numeric Pad (internal USB hub) | 2011 | ||
| Asus | Z87-PLUS Motherboard (onboard USB hubs) | 2013 | 2016 | |
| B&B Electronics | UHR204 | 2013 | ||
| Belkin | F5U701-BLK | 2008 | 2012 | |
| Circuitco | Beagleboard-xM (internal USB hub) | 0424:9514 |
2010 | |
| D-Link | DUB-H7 (silver edition only, new black not working) | 2001:F103 |
2005 | 2010 |
| Elecom | U2H-G4S | 2006 | 2011 | |
| Hawking Technology | UH214 | 2003 | 2008 | |
| Lenovo | ThinkPad EU Ultra Dockingstation (40A20090EU) | 17EF:100F |
2015 | |
| Linksys | USB2HUB4 | 2004 | 2010 | |
| Plugable | USB2-HUB10S | 2010 | ||
| Rosewill | RHUB-210 | 0409:005A |
2011 | 2014 |
| Sanwa Supply | USB-HUB14GPH | 2001 | 2003 | |
| Sunix | SHB4200MA | 0409:0058 |
2006 | 2009 |
| Targus | PAUH212U | 2004 | 2009 |
This table is by no means complete. If your hub works with uhubctl, but is not listed above, please report it by opening new issue at https://github.com/mvp/uhubctl/issues, so we can add it to supported table.
Some modern motherboards have built-in root hubs that do support
this feature, but you need to use option -i to enable it.
Compiling
This utility was tested to compile and work on Linux (Ubuntu, Redhat/Fedora/CentOS), FreeBSD and Mac OS X. It should be possible to compile it for Windows as well - please report if you succeed in doing that.
First, you need to install library libusb-1.0 (version 1.0.12 or later):
- Ubuntu:
sudo apt-get install libusb-1.0-0-dev - Redhat:
sudo yum install libusb1-devel - MacOSX:
brew install libusb, orsudo port install libusb-devel - FreeBSD: libusb is included by default
- Windows: TBD?
To compile, simply run make - this will generate uhubctl binary.
Usage
You can control the power on a USB port(s) like this:
uhubctl -a off -p 235
This means operate on default smart hub and turn power off (-a off, or -a 0)
on ports 2,3,5 (-p 235). Supported actions are off/on/cycle (or 0/1/2).
cycle means turn power off, wait some delay (configurable with -d) and turn it back on.
On Linux, you may need to run it with sudo, or to configure udev USB permissions.
If you have more than one smart USB hub connected, you should choose
specific hub to control using -l (location) parameter.
Copyright
Copyright (C) 2009-2017 Vadim Mikhailov
This file can be distributed under the terms and conditions of the GNU General Public License version 2.