http://www.arcetri.astro.it/~lfini/LinuxLaptops/HP-Pavillion-dv6835nr/
Integrated Webcam:
The integrated webcam is based on a chipset be Quanta Computer and appears as an USB device with ID: 0408:030C.
To have it working you only have to load the related driver. In ubuntu I installed the package luvcview. After that I had the webcam working with xawtv, luvcview -f yuv and with skype. At the moment, ekiga gives an error message when I try to use the webcam.