You also might want to check out libwebcam and its command-line
configuration utility, uvcdynctrl:
http://www.quickcamteam.net/software/libwebcam
$ uvcdynctrl -d /dev/video0 -g 'White Balance Temperature, Auto'
1
$ uvcdynctrl -d /dev/video0 -s 'White Balance Temperature, Auto' 0
$ uvcdynctrl -d /dev/video0 -c
Listing available controls for device /dev/video0:
[...]
Focus (absolute)
Exposure, Auto Priority
Exposure (Absolute)
Exposure, Auto
Backlight Compensation
Sharpness
White Balance Temperature
Power Line Frequency
Gain
White Balance Temperature, Auto
Saturation
Contrast
Brightness
- Ken
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