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.
