[ILUG] Managing USB devices
andrewmc-ilug at celt.dias.ie
Tue Aug 14 16:58:13 IST 2007
On my laptop there's an embedded Logitech webcam above the screen. This
gets hot, even when not in use. I just discovered that the rather ugly
echo 0 > /sys/devices/pci0000:00/0000:00:1d.7/usb5/5-5/bConfigurationValue
disables the camera, cutting battery consumption by over 25% (it really
did get very hot).
I know I could put an entry in /etc/sysctl.conf to set it off by
default, but I'd like to be able to switch it on again later without
resorting to the above ugliness. Is there a "proper" way to manage
embedded USB devices?
Kernel 2.6.20 on Ubuntu Feisty, if it matters.
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