When root, I can run the program just fine. But non-root, I get an error (defined by the program I'm trying to run) that says the device couldn't be found. Since the device can be detected when running root, I'm assuming it's a permissions problem.

I had to install a custom driver for the device to get it to work in linux, so I guess I'm thinking that non-root users don't have access to the drivers...??

Any ideas would be helpful. Thanks

Hi,

Okay, you provided half of the answer right there...

...what you may need to do is enter Root mode and grant the non-privved user (you, in fact) the needed permissions...

It boils down to chmodding the device...and of course, give the non-privved user exec rights too:

...or something to that intent...

Good luck

Thor

Thanks for your reply.

Unfortunately, I've already changed the owner of the .so file and just about every other file associated with the drivers... and it still doesn't work.

But here's something funny, maybe you could explain this.
When running non-root and attempting to execute the program, I get (for example) error code 1.
If I execute the program as root with the device detached from my computer, It displays error code 2.

So even as non root, I think the computer knows the device is there, but for whatever reason I can only retrieve/send data to the device as root.

eeekkk :/

Okay...well, try to find out what group has access to the device, and add the non-privved user to that group...

Enter this as Root, in the console:
then do the same for the user, add the user to the group that is allowed to the device

As for the exit codes, these are listed, try this one for appetisers:

...and then, replace the 64 with 1 or 2...