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monitor channel change
PostPosted: Thu Mar 01, 2007 7:39 pm Reply with quote
bigm8
 
Joined: 18 Dec 2005
Posts: 2




is there a file in the dev/ or sys/ that shows the channel that the tuner is currently tuned too? Or some that can be monitored with famd I was thinking of building a antenna switch (pin diode RF switch). With a small config file to show which antenna to switch on for a given channel then adding multiple antennas will not interfere with on another.. I am using mythtv. So the file would need to be readable.

thanks
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PostPosted: Thu Mar 01, 2007 8:55 pm Reply with quote
xyzzy
 
Joined: 12 Feb 2006
Posts: 225




Nope.

I think there are patches to make the dvb frontend device multi-open. You could use that and poll the frequency. I'm not sure what you would need to do for analog. It might be possible to poll the frequency from the vbi device while myth uses the video device or some hack like that.

Probably easier to just create some sysfs file that has the frequency in it. Keep in mind that the analog tuner driver and the digital tuner driver are totally separate pieces of software.

You might check out how diseqc works, that's a system for controlling satellite switches. You wouldn't care about the physical signaling protocol, but just see how the software works.
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PostPosted: Thu Mar 01, 2007 9:31 pm Reply with quote
bigm8
 
Joined: 18 Dec 2005
Posts: 2




My skills are alot more in the electronic realm instead of programming. I was hoping there already existed some method of monitoring the channel.
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monitor channel change
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