[pwc] Preserve user setting for another program

[Mathieu Bouchard]

On Fri, 14 Dec 2007, Ben Lau wrote:

>   I have a Philips SPC900NC. I would like to disable the auto AGC and
> shutter speed for another program that use GStreamer as input source.
> The camera's parameter is tuned inside Camstream, and then pressed the
> "Save user settings" button. However, the setting can not be preserved
> for another program and even for camstream itself. Open the camera
> again by camstream will restore to default setting unless the "Restore
> user setting" button was pressed.
>   How can I preserve the user setting for another program?

look at pwc-if.c :

         /* Initialize the webcam to sane value */
         pwc_set_brightness(pdev, 0x7fff);
         pwc_set_agc(pdev, 1, 0);

and delete that pwc_set_agc line, and perhaps the other one, too. I didn't 
try it, but a while ago, I did help someone about this: I told him to try 
this and he said it worked.

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| Mathieu Bouchard - tél:+1.514.383.3801, Montréal QC Canada