On Fri, Jan 13, 2006 at 11:25:45AM +0100, wrote:
> camera (B) seems to not like the VIDIOCPWCRUSER ioctl. more specifically,
> if i call this ioctl after opening the device for the 2nd time
> (open-close-open),
> every 2 seconds there is a 'flash' in the image, after which the AGC
> oscillates
> for a moment and the image becomes stable again.
VIDIOCPWCRUSER restores a previous configuration, but is a configuration has
been saved and which parameters. Perhaps on the pro 4000, AGC is not saved
into the camera but the value of the gain ?
> now, this behaviour occurs only after the video device is opened/closed once.
> unplugging the camera, or unloading/reloading the module seems to reset
> the behaviour, in which case the VIDIOCPWCRUSER seems to work without
> problems.
The only difference, it's perhaps the power save mode ... Now i set the
powersaving mode at startup. One try, reset the camera to factory, save
the setting, and do reload the setting. Hope that this will fix the
application.
I'll try to test it, this week-end.
Luc
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