N900 VGA camera
The front camera is a VGA camera from ST microelectronics.
The datasheet lists the following specs.
- Size: 4.5*4.5*2.5mm
- Resolution: 640*480
- minimum illumination 7 lux.
- SNR at 100 lux 34dB
- Field of view: 66 degrees horizontal, 78 degrees diagonal.
The driver presents the camera as a video4linux device - /dev/video0.
This is connected via a multiplexor to the single camera bus on the CPU, along with the main camera. The two cannot be used at once.