no handler for /dev/v4l/video0 - HELP

I have this problem:

It start to happen I don’t know why

I teste whit 2 versions of bttv  0.7 and 0.9

I can´t change the input channel of the card

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>>>>v4lctl /dev/v4l/video0 list

ioctl: VIDIOC_G_TUNER(index=0;name="";type=unknown;capability=0x0 [];rangelow=0;rangehigh=0;rxsubchans=0x0 [];audmode=MONO;signal=0;afc=0): Invalid argument

no handler for /dev/v4l/video0

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Can anyone help me? Any idea?

Thanks

 

Luis Freire

Email: luis.freire@xxxxxxxxxxxx

MSN: luismiguelfreire@xxxxxxxxxxx

Y!: luismiguelfreire

Tel: +351 91 492 20 84