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Executable won't run in /usr/bin

I have a small channel changing script for mythtv that someone else wrote in C. I compiled the executable in /opt. I then copied the executable to /usr/bin. The executable will run correctly with the following command:

Code:

/opt/./channelchange

but fails to run with this command:

Code:

channelchange

When I use the command "channelchange" without the full path, it fails with the following errors:

Code:

rom1394_0 warning: read failed: 0x0000fffff0000414

ERROR reading config rom directory for node 0

Any explanation as to why this would happen?

it looks like you hardcoded something into it
the paths to something in that build folder

posting the build line you used would help .

i am guessing that that "config rom directory" is in that /opt/?/? build folder

The source code can be found here: http://ubuntuforums.org/showthread.php?t=712789

The code was modified for the model sa4250hdc cable box as described in the link. This is a firewire channel changer for the set top box. I am using an expansion card that has two firewire ports on it. When I run "/opt/./channelchanger -v" I get output similar to this:

Code:

node 0: vendor_id = 0x00001106 model_id = 0x00000000

node 1: vendor_id = 0x00001ac3 model_id = 0x000010cc

Device acquired on node 1

Changing channel 708

I am assuming that the two nodes are the two firewire ports. The device is on node 1 and I used that vendor_id and model_id in the code. The error message refers to node 0, which I am assuming is the other port that has nothing connected to it. I don't understand why the executable throws out that error message when running without the full path. I don't think that there is anything in the code referring to the path, but I don't speak C language.

Well, I ended up just configuring mythtv to use the full command "/opt/./channelchange". It works. Still not sure why the executable in /usr/bin fails to work, but I can live with that mystery.