On Thu, Dec 11, 2008 at 08:34:27AM -0700, Andrew McNabb 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?
What distro? In Debian/Ubuntu, you can just unload the 'usbcore' module
or blacklist it. Placing it in your /etc/modprobe.conf or
/etc/modprobe.d/ should suffice.
--
_
Aaron Toponce ( ) ASCII Ribbon Campaign
www.aarontoponce.org X www.asciiribbon.org
/ \
signature.asc
Description: Digital signature
/* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
