Re: Nokia N900 cameras -- pipeline setup in python (was Re: [RFC PATCH 00/24] Make Nokia N900 cameras working)

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Hi Pavel,

On Tue, Jun 21, 2016 at 08:05:49PM +0200, Pavel Machek wrote:
> Hi!
> 
> > > > First, I re-did pipeline setup in python, it seems slightly less hacky
> > > > then in shell.
> > > > 
> > > > I tried to modify fcam-dev to work with the new interface, but was not
> > > > successful so far. I can post patches if someone is interested
> > > > (mplayer works for me, but that's not too suitable for taking photos).
> > > > 
> > > > I tried to get gstreamer to work, with something like:
> > > 
> > > While trying to debug gstreamer, I ran v4l2-compliance, and it seems
> > > to suggest that QUERYCAP is required... but it is not present on
> > > /dev/video2 or video6.
> > 
> > It's not saying that it wouldn't be present, but the content appears wrong.
> > It should have the real bus information there rather than just "media".
> > 
> > See e.g. drivers/media/platform/vsp1/vsp1_drv.c . I suppose that should be
> > right.
> > 
> > Feel free to submit a patch. :-)
> 
> For now I'd not know what to change, sorry :-(. Perhaps we can debug
> it after the support is merged into mainline.

A single line change to change the bus field contents to the actual bus
address.

	grep -A1 platform: drivers/media/platform/vsp1/vsp1_drv.c

> 
> Another weirdness:
> 
> yavta, on v4l-subdev12 :
> 
> control 0x00a40906 `Sensivity' min 0 max 0 step 1 default 0 current 65536.
> 
> Min and max being the same, I don't think I can control the
> sensitivity. I guess I'll have to provid  more light for the tests for
> now...

That control should be removed. I think I concluded its value is the same
for all the modes...

-- 
Sakari Ailus
e-mail: sakari.ailus@xxxxxx	XMPP: sailus@xxxxxxxxxxxxxx
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