Re: Bah! How do I change channels?

Robert Krakora <[email protected]>
Newsgroups gmane.comp.video.video4linux,gmane.linux.drivers.video-input-infrastructure
Message-ID <[email protected]>
On Fri, Jun 26, 2009 at 9:42 AM, Devin
Heitmueller<[email protected]> wrote:
> On Fri, Jun 26, 2009 at 7:50 AM, Andy Walls<[email protected]> wrote:
>> I use either v4l2-ctl or ivtv-tune
>>
>> $ ivtv-tune -d /dev/video0 -t us-bcast -c 3
>> /dev/video0: 61.250 MHz
>>
>> $ v4l2-ctl -d /dev/video0 -f 61.250
>> Frequency set to 980 (61.250000 MHz)
>>
>>
>> Regards,
>> Andy
>
> Hello Andy,
>
> I had sent George some email off-list with basically the same
> commands.  I think what might be happening here is the tuner gets
> powered down when not in use, so I think it might be powered down
> between the v4l-ctl command and the running of the other application.
>
> I have sent him a series of commands to try where he modprobes the
> xc3028 driver with "no_poweroff=1", and we will see if that starts
> working.
>
> Devin
>
> --
> Devin J. Heitmueller - Kernel Labs
> http://www.kernellabs.com
>
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>

I had ran into this before with the KWorld a few months back.
However, whatever problem existed that forced me to add
"no_poweroff=1" to modprobe.conf for the em28xx module has went away.
I have been able to use v4l-ctl or ivtv-tune without any problems to
tune analog channels over cable.

-- 
Rob Krakora
Senior Software Engineer
MessageNet Systems
101 East Carmel Dr. Suite 105
Carmel, IN 46032
(317)566-1677 Ext. 206
(317)663-0808 Fax

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