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Change Channels With Serial Cable & Motorola DCT 2224
http://forums.linhes.org/viewtopic.php?f=11&t=1558		 Page 1 of 1
Author:  dogboy [ Sat May 29, 2004 6:57 pm ]
Post subject:  Change Channels With Serial Cable & Motorola DCT 2224
Make sure when you get a serial cable that it's the "passthru" type --all wires go straight thru. I didn't try it with a mouse extension cable or something like that but I think it probably wouldn't work, since all the wires are not used on a mouse and to save manufacturing cost are probably not included in these types of cables.

There is a program included with the myth distribution (use the source luke...) called "channel",
the source is in a folder called contrib/dct-channel.

The channel source is pre-configured to use com1/3f8. Rather than edit the source I set my serial port to com1/3f8 and compiled the program:

cd contrib/dct-channel
make

cp channel /usr/local/bin/
chmod 755 /usr/local/bin/channel

In mythtv-setup:

under 4. Input connections

set "External channel change command:" to: /usr/local/bin/channel -v
(I tried it without the -v and it didn't work...)

set "Preset tuner to channel:" 3
(you want your tv card to be on channel three now cause all your channel changing happens on the settopbox)

I set "Starting channel:" to nothing it seems to default to 3

If you need to talk to tech support at your cable company to ask them to enable the serial port it's probably best if you just tell them you have a tivo and you want to hook it up to your settopbox.
Author:  xtopher [ Thu Jul 15, 2004 4:09 pm ]
Post subject: 
which distrabution are you using.. i serached for channel and found :


topher@Singularity:~$ locate channel
/etc/skel/.mythtv/themecache/blue.1024.768/gg-rs-channel.png
/home/mythtv/.mythtv/channels
/home/mythtv/.mythtv/themecache/blue.1024.768/gg-rs-channel.png
/home/topher/.mythtv/themecache/blue.1024.768/gg-rs-channel.png
/root/.mythtv/channels
/usr/include/glib-2.0/glib/giochannel.h
/usr/include/linux/ppp_channel.h
/usr/share/mythtv/mythweb/channel_detail.php
/usr/share/mythtv/mythweb/includes/channels.php
/usr/share/mythtv/mythweb/settings_channels.php
/usr/share/mythtv/mythweb/themes/compact/channel_detail.php
/usr/share/mythtv/mythweb/themes/Default/channel_detail.php
/usr/share/mythtv/mythweb/themes/Default/settings_channels.php
/usr/share/mythtv/mythweb/themes/wap/channel_detail.php
/usr/share/mythtv/themes/default/gg-rs-channel.png
/usr/share/mythtv/themes/oldosd/channelinfo.png
/usr/share/mythtv/themes/sleek/gg-rs-channel.png
/usr/share/mythtv/themes/visor/gg-rs-channel.png
/usr/share/xmltv/tv_grab_de_tvtoday/channel_ids
/usr/share/xmltv/tv_grab_it/channel_ids
/usr/share/xmltv/tv_grab_nl/channels
/usr/share/xmltv/tv_grab_uk_rt/channel_ids
/usr/src/kernel-headers-2.4.25-chw/include/asm-mips/pci_channel.h
/usr/src/kernel-headers-2.4.25-chw/include/asm-mips64/pci_channel.h
/usr/src/kernel-headers-2.4.25-chw/include/linux/ppp_channel.h

is one of these what you need?

i want to change the channels on a Motorola cable box. through IR or serial I dont care. There seems to be little info on this .. or i could be using the wrong words agin. I have searched for LIRC which seems to be involved but my config file only deals with the input portion. I have also searched for motorola and change_channel.sh And the change channel isnt even in my computer. Is it part of a package that i need to install or expand. Help!
Author:  dogboy [ Thu Jul 15, 2004 5:43 pm ]
Post subject:  use the source luke
it's in the contrib folder of the mythtv source
you have to dl that from mythtv.org

it's not installed on knoppmyth
Author:  TransAmGore [ Thu Jul 15, 2004 6:34 pm ]
Post subject: 
Sure it's installed in KnoppMyth! It's in:

/usr/src/r4v4_src/mythtv-0.15/src

That directory contains all the source files for MythTV 0.15, you just need to extract them (tar xfj filename.tar.bz2).

In fact, ALL the source code can be found within /usr/src including kernel source and every other extra package that KnoppMyth adds on top of Knoppix. It tends to come in real handy when modifying or recompiling certain things.
Author:  cesman [ Thu Jul 15, 2004 7:08 pm ]
Post subject: 
TransAmGore wrote:
It tends to come in real handy when modifying or recompiling certain things.
I knew I had a reason for including those... ;)
Author:  xtopher [ Fri Jul 16, 2004 5:18 pm ]
Post subject: 
thax for the tip. i found it and put it in there .. but i dont believe my serial port is on. so i hooked up a IRblaster to it. would this code work for that as well ... any help would be appreciated
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