[mythtv-users] Problem Using SA3250HD with Firewire Capture

Mario Limonciello mario.mailing at gmail.com
Fri Jul 15 01:43:23 EDT 2005

Mike Smith wrote:

>I just received a Scientific Atlanta 3250HD with an
>active Firewire port and can't get it to work with
>MythTV 0.18 on Mandrake 10.0.  I have Time Warner
>Cable in Cincinnati.  They didn't go out of their
>way to get the box to me, but I was VERY persistant.
>Took about six weeks of pestering.
>The 1394 port on the 3250HD is active.  I plugged it
>into the firewire port on my HDTV and I get ALL the
>digital channels, including HBO.
>I built the latest release of libraw1384, libiec61883,
>and the utilities for the 2.6 kernal.  I can
>load all the drivers.
>I can plug a Firewire external drive into the 1394A
>built into my motherboard and its recognized.  I can
>mount filesystems on the drive.  When I do a
>with the drive attached,  I see information for node 0
>and node 1.
>Next,  I removed the drive, rebooted the mythbackend
>server and connected the 1394 port on the 3250 to
>the 1394A port on my computers motherboard while
>tailing /var/log/messages.  Nothing.  No messages at
>all.  I then do a plugreport and see only node 0.
>Here are the 1394 related drives loaded:
>[root at lbk libiec61883]# lsmod |grep 1394
>dv1394                 20076  0
>video1394              17996  0
>raw1394                29740  0
>eth1394                21256  0
>ohci1394               33348  2 dv1394,video1394
>ieee1394              319704  5
>When I load the drivers manually,  I get the following
>messages in /var/log/messages:
>Jul 14 18:26:19 lbk kernel: devfs_mk_dev: could not
>append to parent for raw1394Jul 14 18:26:19 lbk
>kernel: ieee1394: raw1394: /dev/raw1394 device
>Jul 14 18:26:52 lbk kernel: devfs_mk_dev: could not
>append to parent for video1394/0
>Jul 14 18:26:52 lbk kernel: video1394: Installed
>video1394 module
>Anyone have an idea on what else I can try?
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You may have to manually create the node for /dev/raw1394 prior to
actually modprobing the driver

/bin/mknod /dev/raw1394 c 171 0;

I have to do this followed by a bus reset everytime the machine is reset
for my 3250HD to work.

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