LINUX FC6
For webcam I am using uvcvideo and gspca drivers and luvcview camera utility
(Note: I think gspca is low level driver and uvcvideo is a module ???? 
I am not sure but probably you don't need uvcvideo for every camera ????? Probably you need something else ?????)
1. select camera from the list, longest list that I found available on http://mxhaard.free.fr/spca5xx.html
- select camera with driver spca5xx or gspcav1 or linux-UVC
(gspcav1 supersede spca5xx and probably linux-UVC???? or linux-UVC also required a uvcvideo module????, anyway I have used cameras with all of the above and they seems to be working)
'NOTE' don't trust camera names, most of them are incorrect, run lsusb with camera connected and use device ID. If we are looking for camera to buy, we can find all device id for our prefered brand, then google them to find actual camera model, for example Logitech Quickcam Family webcam has id 046d:092f, and it is on the list, so it is OK to use this camera even if name is different.
2. check are those drivers already installed and running on your machine: lsmod | grep videodev
If they are not shown, look are they exixst: find /lib/modules/your_current_kernel_version -name gspca\* or uvcvideo\*
If they exist, load them using modprobe -v gspca or uvcvideo
3. If not (likely) download driver from http://atrpms.net/dist/fc6/gspca/
It should have exactly the same version as your kernel, so if uname -a telling: Linux roland 2.6.20-1.2952.fc6 ... we should use driver gspcav1-kmdl-2.6.20-1.2952.fc6-1.00.18-4.fc6.i686.rpm
4. install driver: rpm -i gspcav1-kmdl-2.6.20-1.2952.fc6-1.00.18-4.fc6.i686.rpm
5. run yum install SDL
6. copy
SDL-devel