Re: [PATCH/RFC] v4l: Add subdev sensor g_skip_frames operation

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On Fri, 19 Nov 2010, Laurent Pinchart wrote:

> Hi Hans,
> 
> On Friday 19 November 2010 14:42:31 Hans Verkuil wrote:
> > On Friday 19 November 2010 14:26:42 Laurent Pinchart wrote:
> > > Some buggy sensors generate corrupt frames when the stream is started.
> > > This new operation returns the number of corrupt frames to skip when
> > > starting the stream.
> > 
> > Looks OK, but perhaps the two should be combined to one function?
> 
> I'm fine with both. Guennadi, any opinion ?

Same as before;) I think, there can be many more such "micro" parameters, 
that we'll want to collect from the sensor. So, if we had a good idea - 
what those parameters are like, we could implement just one API call to 
get them all, or even just pass one object with this information - if it 
is constant. If we don't have a good idea yet, what to expect there, it 
might be best to wait and first collect a more complete understanding of 
this kind of information. In any case I wouldn't convert these two calls 
to one like

int (*get_bad_things)(struct v4l2_subdev *sd, u32 *lines, u32 *frames)

;)

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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