[mythtv-users] VBI/CC with HVR-2250 Analog inputs

[Bob]

I am trying to implement the closed captions for HD-PVR described on the 
wiki:

http://www.mythtv.org/wiki/Captions_With_HD_PVR

The issue is that I have tried, from the command-line, to see if I can 
capture any VBI but I always get an empty file.

In addition, when I try these commands from the "start" script they fail:

${V4L2_CTL} -d ${CAPTION_DEVICE} --set-fmt-sliced-vbi=cc 
--set-ctrl=stream_vbi_format=1

$ v4l2-ctl -d /dev/hvr2250_0 --set-fmt-sliced-vbi=cc
VIDIOC_S_FMT: failed: Invalid argument
$ v4l2-ctl -d /dev/hvr2250_0 --set-ctrl=stream_vbi_format=1
unknown control 'stream_vbi_format'

I am using this firmware file: NXP7164-2010-03-10.1.fw

I would appreciate any suggestions.