[mythtv-users] Is anybody able to change channels on a 4250HDC STB via firewire?

Matt Emmott memmott at gmail.com
Tue May 12 01:51:36 UTC 2009

On Mon, May 11, 2009 at 3:02 PM, Christian Szpilfogel <
chrisznews4 at rogers.com> wrote:

> Matt Emmott wrote:
>> I've got Mythbuntu 8.10 running with 0.22-trunk and have set up a slave BE
>> with an HD-PVR. I have succesfully been able to capture video from my
>> SA4250HDC STB and would like to use one of the firewire contrib scripts to
>> change the channel. However, none of the scripts work. When I attempt to use
>> the SA3250 script, I get the message "Ignoring SA 4250HDC on node 1 -- sorry
>> not supported yet Could not find SA3250HD or SA4200HD on the IEEE 1394 bus."
>> Has anybody found a way to change the channel on this STB? I'm open to any
>> option. Thanks in advance.
> Perhaps the following will help you...
> http://mythtv.org/pipermail/mythtv-users/2009-May/255029.html
> Changes 3250HD/4250HD channels and ensures all is powered on before
> doing so.
> The current 3250 in contribs is broken.
> Christian
Thanks for all the help, it looks like majoridiot is the go-to guy for
channel changing on this box. I downloaded and compiled his script, however
I'm still running into the same issue as stated above - it shows 2 devices
on my firewire bus and I don't know which is the STB:

/sa4250_ch -v
node 0: vendor_id = 0x00001106 model_id = 0x00000000
node 1: vendor_id = 0x000022ce model_id = 0x000010cc
Could not find SA42XXHD on the 1394 bus!

If I dmesg | grep 1394 I get:
matt at mythdev:~$ dmesg | grep 1394
[    3.560026] ohci1394 0000:00:0a.0: PCI INT A -> GSI 18 (level, low) ->
IRQ 18
[    3.612839] ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[18]
MMIO=[ca000000-ca0007ff]  Max Packet=[2048]  IR/IT contexts=[4/8]
[    5.061193] ieee1394: Host added: ID:BUS[0-00:1023]
[    5.162687] ieee1394: Node added: ID:BUS[0-01:1023]
[   13.749040] ieee1394: raw1394: /dev/raw1394 device initialized
[   13.821294] NOTE: The dv1394 driver is unsupported and may be removed in
a future Linux release. Use raw1394 instead.

Thoughts on how to proceed?
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