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

[Brian Walter]

H P Ladds wrote:
> Hey All,
>
> I'm giving this project another try.  I'm experimenting with the "LOW
> SPEED DATA" port on my DirecTV Box (model # DRD523RB). I've connected
> to the DirecTV box via a nine pin serial connector.
>
> I have no idea how to looks for signs of life on the port.
>
> Perhaps the info below will be helpful.
>
> Thanks,
>
> root at mythboxen# cat /dev/proc/ttyS?
> /dev/ttyS0
> /dev/ttyS1
> /dev/ttyS2
> /dev/ttyS3
> /dev/ttyS4
>
> root at mythboxen# cat /dev/proc/ttyS??
> No such file or directory
>
> root at mythboxen# cat /proc/devices
> Character devices:
>   1 mem
>   2 pty
>   3 ttyp
>   4 /dev/vc/0
>   4 tty
>   4 ttyS
>   5 /dev/tty
>   5 /dev/console
>   5 /dev/ptmx
>   7 vcs
>  10 misc
>  13 input
>  14 sound
>  21 sg
>  29 fb
>  61 BaseRemoteCtl
>  81 video4linux
> 116 alsa
> 128 ptm
> 136 pts
> 171 ieee1394
> 180 usb
> 189 usb_device
> 195 nvidia
> 212 DVB
> 251 pcmcia
> 252 aac
> 253 megaraid_sas_ioctl
> 254 megadev_legacy
>
> Block devices:
>   1 ramdisk
>   2 fd
>   3 ide0
>   7 loop
>   8 sd
>   9 md
>  11 sr
>  22 ide1
>  65 sd... #edited for brevity
> 135 sd
> 253 device-mapper
> 254 mdp
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>   
I'm not sure about the RCA box, but, if you've connected to the serial 
port on your puter, then, try playing with the directv.pl script in 
contrib/channelchangers.

I've got a D11, and followed the wiki on making the cable, and after 
installing some perl stuff to talk to the serial port, I could use the 
script to talk to the box, and get responses back.

Brian