It seems, the macro V4L2_EXPOSURE_MANUAL is set to 1, but in the
uvc_ctrl.c it points to AUTO.
Hence for manual exposure control, I need to set 0. Is my understanding correct?

On Tue, Aug 10, 2010 at 10:42 AM, linux newbie <[email protected]> wrote:
> Hi,
>
> * I am using microsoft lifecam in my embedded target running linux.
> * I want to disable auto exposure.
> * VIDIOC_G_CTRL of id V4L2_CID_EXPOSURE_AUTO returns value of 3
> * If I do VIDIOC_S_CTRL with value 1 (V4L2_EXPOSURE_MANUAL) returns -1.
>
> Do I need to change other any settings before modifying 
> V4L2_CID_EXPOSURE_AUTO??
>
> Thanks
>
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