setpwc is a program that can set and list various settings of Philips (and compatibles) WebCams with the 'PWC chipset'. If ioctls-commands fails, you have to upgrade to kernel 2.4.21 or more recent.
Product's homepage
Here are some key features of "setpwc":
· dump current settings
· set framerate
· store/restore settings in nonvolatile RAM
· restore factory settings
· set compression preference
· set automatic gain control
· set shutter speed
· red/blue-balance when white balance mode set to manual
· set automatic white balance mode speed and delay
· set led on- and off-time
· set electronic sharpness
· set backlight compensation
· set antiflicker mode
· set noise reduction mode
· set pan/tilt/zoom (Logitech QuickCam Orbit/Sphere)