User manual
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driver can support only one codec device associated a with camera
controller.
Codec Driver:
The Codec driver needs to comply with the V4L2 master-slave interface
standard and should be registered to the V4L2 as a slave device. Replacing
the codec can be accomplished by rewriting the codec driver, without any
change to the camera driver.
CCDC Library:
As a hardware module for data input, the CCDC receives data from
sensors/decoders. The CCDC library provides an API for configuring the
CCDC module and being called by camera driver.
Reference
linux-2.6.32-sbc8140/drivers/media/video/
linux-2.6.32-sbc8140/drivers/media/video/omap34xxcam
.c
linux-2.6.32-sbc8140/drivers/media/video/tvp514x-int.c