On 04/07/15 15:30, Matthias Apitz wrote:
Hello, I'm using an Ubuntu smartphone connected on one of the USB ports to my netbook as a router to the Internet. I wanted to power-off the USB port to a) save energy in the netbook and b) not having the phone always charged for the memory effect in the battery. I tried: $ usbconfig ... ugen0.3: <AquarisE4.5 BQ> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA) # usbconfig -d ugen0.3 power_off # usbconfig -d ugen0.3 ugen0.3: <AquarisE4.5 BQ> at usbus0, cfg=255 md=HOST spd=HIGH (480Mbps) pwr=OFF (500mA) as you can see the state is now pwr=OFF, but in this state the USB port is not longer usable. What is the correct way to shutdown the 5V provided via USB to the device?
Not all USB ports support power off. --HPS _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"