[mythtv-users] Serial control of RCA DirecTV box -- should I bother?

[Brad DerManouelian]

On Nov 17, 2006, at 11:57 AM, H P Ladds wrote:

> On 11/17/06, Brad DerManouelian <myth at dermanouelian.com> wrote:
>
> We'll all be happy to hear the answer once you find out. :) Since  
> you've got a standard serial port, it will be about a $4 investment  
> to find out. Probably just need a null modem cable.
>
>
> Ahhh -- It's a noob's life for me. If I did  try and it failed,  
> then it would be impossible to tell the difference between a  
> compatibility issue and an operator error.
>
> But for kicks -- let's say I did make a serial to serial cable and  
> connected the serial port on the RCA to the PC's serial port --  
> then what? I have no ideal how to determine if there is life on the  
> port -- "statserial" perhaps?
>
> Do you think the script for the Rj 11 would work for the 9 pin  
> connection?
>
> Preston

You should see a difference between no activity (timeout) and bad  
information (unrecognized string returned). I suspect it will work  
since the STB probably doesn't care which connection is being used  
and will treat commands from either of them the same. Your mythtv box  
will have no idea (or care) what kind of connector is on the other  
end as long as the expected response comes back.

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