Mailing List Archive: MythTV: Users

Firewire Channel Changing Help

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foner at usa

Apr 15, 2012, 6:12 PM

Post #1 of 3 (252 views)
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Firewire Channel Changing Help

I'm having trouble doing channel changing via Firewire, and I was
hoping you all could help.

I'm running .24-fixes on Ubuntu 10.10 on a 2006 Mac Mini (upgraded to
Core 2 Duo 2 GHz, 2 GB RAM). I'm using a Hauppauge HD-PVR connected
to my cable box (a SMT-H3050) via component, but rather than rely on
the HD-PVR IR blaster to change channels, I'd like to use firewire to
change channels.

I've followed the instructions at
http://www.mythtv.org/wiki/FireWire. When I run firewire tester I get
the following results:

Action: Test P2P connection 5 times, node 1, channel 1
P2P: Testing...Success, 69 packets received
P2P: Testing...Success, 158 packets received
P2P: Testing...Success, 52 packets received
P2P: Testing...Success, 106 packets received
P2P: Testing...Success, 74 packets received

I added in the vendor and model ID of my cable box to 6200ch and
compiled and installed it.

When I try changing channels, I get the following message:

Could not find Motorola DCT-6200 on the 1394 bus.

Any ideas on why it's not working or what I need to do to fix it
would be most appreciated.

Thanks in advance.

- Carl
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ylee at pobox

Apr 15, 2012, 9:03 PM

Post #2 of 3 (240 views)
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Re: Firewire Channel Changing Help [In reply to]

Carl Foner <foner [at] usa> says:
> When I try changing channels, I get the following message:
>
> Could not find Motorola DCT-6200 on the 1394 bus.

6200ch requires specifying either 1) the node and port/host adapter,
or 2) GUID of the FireWire box you want to talk to. GUID is
preferable, as nodes can change during reboot. 'sudo plugreport'
provides the necessary data. If it says something like

Host Adapter 0

[...]

Node 2 GUID 0x000d7abcde123456
------------------------------
oMPR n_plugs=1, data_rate=2, bcast_channel=63 [*]

[*] Has nothing to do with TV channels

then the command line is either

sudo 6200ch -g 0x000d7abcde123456 70 # 70 = the channel to tune to

or

sudo 6200ch -n 2 -p 0 70 # 70 = the channel to tune to

If these directions don't work, recheck the vendor and model ID you
compiled in.

--
MythTV FAQ Q: "Cheap frontend/backend?" A: Revo, $200-300 @ Newegg
Q: "Record HD cable/satellite?" A: Hauppauge HD-PVR, $200 @ Newegg
Q: "Can't change Live TV channels w/multirec!" A: Hit NEXTCARD key
More answers @ <URL:http://www.gossamer-threads.com/lists/mythtv/>
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foner at usa

Apr 18, 2012, 11:50 PM

Post #3 of 3 (231 views)
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Re: Firewire Channel Changing Help [In reply to]

Yeechang Lee wrote:
>Carl Foner <foner [at] usa> says:
>> When I try changing channels, I get the following message:
>>
>> Could not find Motorola DCT-6200 on the 1394 bus.
>
>6200ch requires specifying either 1) the node and port/host adapter,
>or 2) GUID of the FireWire box you want to talk to. GUID is
>preferable, as nodes can change during reboot. 'sudo plugreport'
>provides the necessary data. If it says something like
>
> Host Adapter 0
>
> [...]
>
> Node 2 GUID 0x000d7abcde123456
> ------------------------------
> oMPR n_plugs=1, data_rate=2, bcast_channel=63 [*]
>
>[*] Has nothing to do with TV channels
>
>then the command line is either
>
> sudo 6200ch -g 0x000d7abcde123456 70 # 70 = the channel to tune to
>
>or
>
> sudo 6200ch -n 2 -p 0 70 # 70 = the channel to tune to
>
>If these directions don't work, recheck the vendor and model ID you
>compiled in.

Thanks for the reply. I tried these directions, but I'm still getting
the same error message.

I rechecked the vendor/model ID I compiled in. I tried to follow the
format in place, but I'm not sure if I got it right. In one place I
added the following:

#define SMTH3050_VENDOR_ID1 0x000000f0
#define SMTH3050_MODEL_ID1 0x0001ffff

Later on I added this:

(dir.vendor_id == SMTH3050_VENDOR_ID1) ||

Do those look right formatting-wise? Is there anything I'm
missing/doing wrong/should be aware of?

Thanks again for any help you can provide.

- Carl

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