Re: Setting up the exposure time of a webcam

[Jean-Francois Moine <moinejf@free.fr>]

On Tue, 26 Jan 2010 15:00:53 -0200
Nicolau Werneck <nwerneck@gmail.com> wrote:

> Hello. I have this very cheap webcam that I sent a patch to support on
> gspca the other day. The specific driver is the t613.
> 
> I changed the lens of this camera, and now my images are all too
> bright, what I believe is due to the much larger aperture of this new
> lens. So I would like to try setting up a smaller exposure time on the
> camera (I would like to do that for other reasons too).
> 
> The problem is there's no "exposure" option to be set when I call
> programs such as v4lctl. Does that mean there is definitely no way for
> me to control the exposure time? The hardware itself was not designed
> to allow me do that? Or is there still a chance I can create some C
> program that might do it, for example?
	[snip]

Hello Nicolau,

There are brightness, contrast, colors, autogain and some other video
controls for the t613 webcams. You must use a v4l2 compliant program to
change them, as vlc or v4l2ucp (but not cheese).

Regards.

-- 
Ken ar c'hentañ	|	      ** Breizh ha Linux atav! **
Jef		|		http://moinejf.free.fr/