Hi, Short version: Is it possible to "switch off" a USB port? (even the minimum standard power) I've been Googling and I haven't been able to resolve my problem: I'm using Kernel 3.2.0 (from Debian) and I'd like to switch off a USB port. The use case is that I have a dumb device (for example a fan) which one doesn't identify to the system (lsusb, dmesg, etc. says nothing) and I'd like to be able to switch off and on it. I've tried a variety of things to /sys/bus/usb/devices/usb2|2-2.../power/level and power/control, but my understanding is that it changed in the last kernels, and seems that now is not possible to do. Am I trying the impossible? Any workaround in the kernel / user level side? In case that it matters: 00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02) I think that I did it back to the 2006 playing with powertop and different things. Regards and many thanks! PS: if this is off-topic feel free to contact me off-the-list / send me to a better mailing list -I haven't found -- Carles Pina i Estany http://pinux.info -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html