drivers for USB webcams

["Lee" <lee_t@bigfoot.com>]

I'm looking at starting a project that will take video input from
multiple usb based webcams. I understand that some webcam manufacturers
supplied x86 based object files for linux drivers so they didn't have
to release information on interfacing to their products. Are there
anyopen source (or Arm based) drivers for any brands of USB webcams
contained in the Debian package? I'm particularly interested in any
cams that have pan/tilt/zoom capability. Thanks in advance.

Lee Thalblum