On Thu, 13 Sep 2001, Dmitry Alexeyev wrote:
> Hello.
>
> I have BT878 card and external multiplexer with several monochrome cameras
> connected to it. If one camera is off ( blank screen ), bt878
> automaticaly increases brightness, so I can see nothing on frames from
> other cameras.
> How can i turn off AGC ?
Set the bit BT848_ADC_AGC_EN of the register BT848_ADC to 1. The constants
are in the driver source code. If I turn off AGC, the picture goes all white
and I can see very little. I don't know how to manually set the gain.
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