Does omap3isp driver inherit controls of attached sensors?

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Hi,
I'm trying to add VFLIP control to the mt9p031 driver (don't worry
Guennadi, I won't send the patch yet). For that purpose I've followed
the code in mt9v032 sensor.
When I try to query available controls using yavta I get the following:

root@beagleboard:~# ./media-ctl -e "OMAP3 ISP CCDC output"
/dev/video2

root@beagleboard:~# ./yavta -l /dev/video2
Device /dev/video2 opened: OMAP3 ISP CCDC output (media).
No control found.

As I have read here [1], drivers using subdevices should inherit their
controls. Is this the case with omap3isp?

[1] http://lxr.linux.no/#linux+v2.6.39/Documentation/video4linux/v4l2-controls.txt

-- 
Javier Martin
Vista Silicon S.L.
CDTUC - FASE C - Oficina S-345
Avda de los Castros s/n
39005- Santander. Cantabria. Spain
+34 942 25 32 60
www.vista-silicon.com
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