Web cam and steering wheel communiation with flash

I am currently trying out using other means of interaction with my flash made applications and i am stuck. Anyone knows how to or what are the scripts to make flash communicate with my web camera and steering wheel? Or where can i read up more about this two means of external interactions. Basically i need the web cam to take a photo and input it into my application, using the application to modify the photo and ultimately print it out. And as for the steering wheel, simply to create a driving game with it.
Anyone can help me out on these areas or lead me to pages or books i can read up about it? Many thanks in advance all~