disabling usb devices in a laptop
mwalker at kydance.net
Thu Dec 11 16:18:09 MST 2008
On Thu, December 11, 2008 4:08 pm, Brandon Stout wrote:
>> I recently ran powertop on a laptop and noticed that the webcam and
>> bluetooth devices (both of which are connected via an internal USB hub),
>> are always on. They are both sucking power, and the webcam is also
>> hitting the CPU with a constant stream of interrupts. Since I'm not
>> using them, I would love to disable these devices.
>> So far I have tried unloading the kernel modules, which didn't work, and
>> blacklisting them so they can't load in the first place, which also
>> didn't work. Unfortunately, the BIOS is limited and doesn't give any
>> options for disabling specific devices.
>> Has anyone run into this problem before? How do you turn off a USB
>> device without snipping the wires?
> Why not just unplug the devices since you're not using them anyway?
Because they're internal.
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