[mythtv-users] HDPVR Problems Persist

[Nick Rout]

On Mon, Dec 2, 2013 at 5:34 PM, Mark Pennock <markitman2 at gmail.com> wrote:
> I can't get my firewire channel (change_channel_1) change script to execute
> without a sudo in front of it. Here is what happens when I don't use sudo.
>
> mark at Myth4:/usr/local/bin$ change_channel_1 200
> starting with node: 0
> rom1394_0 warning: read failed: 0x0000fffff0000414
> error reading config rom directory for node 0
> mark at Myth4:/usr/local/bin$
>
> Now I run the same command with sudo works for changing the channel and I
> get:
>
> mark at Myth4:/usr/local/bin$ sudo change_channel_1 200
> [sudo] password for mark:
> starting with node: 0
> node 0: vendor_id = 0x00d00d1e model_id = 0x00000001
> node 1: vendor_id = 0x00002180 model_id = 0x0000d330
> AV/C Command: Op=0x00487C0D
> AV/C Command: 200 = Op1=0x00487C22 Op2=0x00487C20 Op3=0x00487C20
>
> My permissions are correct for both the script and the 6200ch. The are
> executable by all and I have changed to ownership and group to mythtv.
>
> Any idea why this occurs?

But is the device your script needs to access writable by your user?

And not forgetting the backend is possibly (on ubuntu at least)
running as a different user to you (on ubuntu it is the mythtv user
runs the backend)