I am looking for documentation on the V4L2 capture driver for the DM355, the latest DVSDK for this appears to be 3.10.00.19 which appears to come with PSP 3.01 which has documentation on the wiki here. Unfortunately the only documentation I can find on the V4L2 capture driver is the small video capture section on that wiki article. Is there anything more substantial anywhere else? I tried looking in older documentation from the PSP 2.10 however the driver seems to have changed significantly since then.
For example, how can one use the VPFE_CMD_S_CCDC_RAW_PARAMS ioctl? All I can find on this is the mention in the source code as an experimental ioctl, and a year old discussion about adding it on the Linux-Media mailing list. It looks like it might be useful for tweaking register values, but I am not even sure if that is what it does since I have not been able to trace it through the ccdc_hw_ops structure.
Essentially I am looking for anything that would help to debug CCDC capture problems using an image sensor.
