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Connexant cx25821 help

I have a PCI-E capture card with two connexant cx25821 chips.
04:00.0 Multimedia video controller: Conexant Systems, Inc. Device 8210
05:00.0 Multimedia video controller: Conexant Systems, Inc. Device 8210

There is a staging driver in latest linux kernels. Looks like it uses v4l2
I tried to use precompiled module cx25821 provided with Ubuntu 10.10 beta
(2.6.35-19-generic #28-Ubuntu SMP Sun Aug 29 06:36:51 UTC 2010 i686

# modprobe cx25821

The module looks like to be loaded successfully.

# lsmod | grep cx
cx25821               108646  0
v4l2_common            17329  1 cx25821
videodev               43098  2 cx25821,v4l2_common
videobuf_dma_sg         9806  1 cx25821
videobuf_core          16907  2 cx25821,videobuf_dma_sg
btcx_risc               3636  1 cx25821
tveeprom               11178  1 cx25821

dmesg says:
[ 1980.986232] Linux video capture interface: v2.00
[ 1980.989245] cx25821: module is from the staging directory, the quality is
unknown, you have been warned.
[ 1980.993152] cx25821 driver version 0.0.106 loaded

And now I can not see any /dev/video0-7 devices to get input from the card.
I'l greatly appreciate if someone could tell me about additional actions to
make this work.
Thank you.
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