How to restart USB powered devices without physically removing the devices

[pashok84]

Hi,

I have USB modem connected to my linux box. My linux machine is powered on all the time. sometimes USB modem is not working, i need to physically remove the modem and insert it to work properly. HOw to restart the USB powered devices, without removing it physically. Is it possible to switch off the USB port and switch on it again.

Thanks and Regards,
Ashok Kumar P

 

[xaccto]

hmm, this is actually a good question. On windows, the easy to access facility of simply disabling then enabling the device does the trick.
On my linux box I hadn't needed to require that yet, so don't know the equivalent !! my bad.

 

[tpetar]

You can see this project, you can get idea from it :

https://www.serasidis.gr/circuits/USB_switch/usb_switch_GR.htm

Use google translator if you are not Greek. :smile:

 

[pashok84]

Thanks for your kind reply xaccto & tpetar.

Tpetar:
what i was searching is to restart the USB modem connected to usb port of linux machine.

 

[tpetar]

You can use given project as idea for your needs on any OS.