Andy Walls quoted and wrote:

...
>> I would look at the cx25840 docs and see if there is something
>> comparable.
>
> For vsync crappiness look at register 0x402 bit 0: FAST_LOCK_MD to
> turn off the vsync detection filter window.  This might get you
> sync'ed up correctly vertically if the vsync is the problem. You may
> find register 0x40e bit 6 SPECIAL_PLAY_MODE_N interesting, but it is
> read only as the chip internal algorithms decide when special play
> mode (VCR FF, Rewind, etc.) is active on the input.
>
> For hsync related problems there are a slew of things to try in
> registers 0x104, 0x106, and 0x488-0x49a and maybe others.
> Some of these are manual settings, but many tweak how automatic
> algorithms are operating on the chip.

May I ask please how one "looks" at, or sets the register settings? I see
that "v4l2-ctl --set-ctrl=<ctrl>=<val>[,<ctrl>=<val>...]" allows one to
alter the value of various controls returned by the "-l" (ell) option, but I
don't see any obvious way to list or set the values of the various registers
on the chip.

Of course I'd like to be able to somehow return to the current settings if
something gets mucked up. <g>


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