Powering down XPS 1210m webcam in Linux

The built in webcam is always an annoyance because it gets pretty warm and consumes power. It's pretty easy to disable it in Windows but for linux you will have to send the commands to suspend the device.

I've just reinstalled Ubuntu 9.04 and I had to disable it again.

To suspend the QuickCam in XPS 1210m:

1.switch to root

2. issue:

echo suspend > /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-7/power/level

echo suspend > /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5/power/level

You can read the power management writeup here:

http://www.lesswatts.org/projects/devices-power-management/usb.php