Kworld 115 Analog Input Selection

Kworld 115 Analog Input Selection

[Jason Pontious]

I have been attempting to understand how the rf input is selected for analog
on the Kworld 115.  I'm currently using 2.6.24 kernel (Ubuntu 8.04). Mine is
currently setup as follows

RF Input 1: ATSC/Analog
RF Input 2: QAM

I would like to move the analog to the same input as the QAM.

Would it be possible for this to be configurable?  Not changeable on the fly
but set up as an option passed into the module?

I have found this in tuner-simple.c which seems to show that there are 4
possible inputs.  But where is this actually initialized to one or the
other.  Is it just a simple switch somewhere I can change and recompile the
module?

case TUNER_PHILIPS_TUV1236D
<http://www.gelato.unsw.edu.au/lxr/ident?i=TUNER_PHILIPS_TUV1236D>:
 <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L259>
             */* 0x40 -> ATSC antenna input 1 */*
 <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L260>
             */* 0x48 -> ATSC antenna input 2 */*
 <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L261>
             */* 0x00 -> NTSC antenna input 1 */*
 <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L262>
             */* 0x08 -> NTSC antenna input 2 */*



Thanks for any help you can provide.
Jason Pontious
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Re: Kworld 115 Analog Input Selection

[Michael Krufky]

Jason Pontious wrote:
> I have been attempting to understand how the rf input is selected for analog
> on the Kworld 115.  I'm currently using 2.6.24 kernel (Ubuntu 8.04). Mine is
> currently setup as follows
> 
> RF Input 1: ATSC/Analog
> RF Input 2: QAM
> 
> I would like to move the analog to the same input as the QAM.
> 
> Would it be possible for this to be configurable?  Not changeable on the fly
> but set up as an option passed into the module?
> 
> I have found this in tuner-simple.c which seems to show that there are 4
> possible inputs.  But where is this actually initialized to one or the
> other.  Is it just a simple switch somewhere I can change and recompile the
> module?
> 
> case TUNER_PHILIPS_TUV1236D
> <http://www.gelato.unsw.edu.au/lxr/ident?i=TUNER_PHILIPS_TUV1236D>:
>  <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L259>
>              */* 0x40 -> ATSC antenna input 1 */*
>  <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L260>
>              */* 0x48 -> ATSC antenna input 2 */*
>  <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L261>
>              */* 0x00 -> NTSC antenna input 1 */*
>  <http://www.gelato.unsw.edu.au/lxr/source/drivers/media/video/tuner-simple.c#L262>
>              */* 0x08 -> NTSC antenna input 2 */*

There is a module option in tuner-simple that will let you do this, but that code is not in the 2.6.24 kernel.

You'll have to install v4l-dvb from linuxtv.org for the new feature.

modinfo tuner-simple for details.

-Mike

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