Installing facetimeHD 

sudo apt-get install git

sudo apt-get install curl xzcat cpio

git clone https://github.com/patjak/facetimehd-firmware.git

cd facetimehd-firmware

make

sudo make install

cd ..

sudo apt-get install kmod libssl-dev checkinstall

git clone https://github.com/patjak/bcwc_pcie.git

cd bcwc_pcie

make

sudo make install

sudo depmod

sudo modprobe -r bdc_pci

sudo modprobe facetimehd

sudo nano /etc/modules

**add line "facetimehd", write out (ctl+o) & close**