On Monday 29 August 2011 20:18:29 Eugene Grosbein wrote:
> 30.08.2011 01:11, Hans Petter Selasky wrote:
> >> I have USB 3G modem with LED and all my attempts to power it off
> >> with usbconfig power_off/power_on, set_state 255 to its hub do nothing
> >> to modem's LED that is ON still, so modem does not get powered off
> >> physically.
> >> 
> >> I have Intel D975XBX motherboard and use its onboard USB2.0 ports:
> >> 
> >> # usbconfig
> >> ugen0.1: <UHCI root HUB Intel> at usbus0, cfg=0 md=HOST spd=FULL
> >> (12Mbps) pwr=SAVE ugen1.1: <UHCI root HUB Intel> at usbus1, cfg=0
> >> md=HOST spd=FULL (12Mbps) pwr=SAVE ugen2.1: <UHCI root HUB Intel> at
> >> usbus2, cfg=0 md=HOST spd=FULL (12Mbps) pwr=SAVE ugen3.1: <UHCI root
> >> HUB Intel> at usbus3, cfg=0 md=HOST spd=FULL (12Mbps) pwr=SAVE ugen4.1:
> >> <EHCI root HUB Intel> at usbus4, cfg=0 md=HOST spd=HIGH (480Mbps)
> >> pwr=SAVE ugen0.2: <Smart-UPS 750 FW651.18.I USB FW7.4 American Power
> >> Conversion> at usbus0, cfg=0 md=HOST spd=LOW (1.5Mbps) pwr=ON ugen4.2:
> >> <USB 2.0 4-Port Hub NEC> at usbus4, cfg=0 md=HOST spd=HIGH (480Mbps)
> >> pwr=SAVE ugen4.3: <ZTE CDMA Technologies MSM ZTE, Incorporated> at
> >> usbus4, cfg=255 md=HOST spd=HIGH (480Mbps) pwr=ON
> >> 
> >> As you can see, I also have additional USB Hub intergrated with my
> >> monitor, tried its ports too - without luck.
> >> 
> >> Please CC: me as I'm not in the list.
> >> 
> >> How do I power USB port off with FreeBSD 8.2-STABLE?
> > 
> > If you use an external HUB and the HUB does not have the power always
> > one, like some do, it should be enough to re-enumerate the parent HUB
> > which your device is connected to.
> 
> I use motherboard-integrated USB ports. How do I "re-enumerate" the parent
> HUB? I've tried "usbconfig -d 4.1 set_config 255" - it does not power my
> device off.
> 
> I need not quick reset. I need power it off for long time.

Hi,

You could try: usbconfig -d X.Y suspend or usbconfig -d X.Y power_off, though 
if the hardware is not constructed to support power off it won't work.

Also read the thread that Mike referred to.

--HPS
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