In particular, I'm talking about the Ti Silverlink cable for Ti Graphing Calculators. Fedora already comes with the kernel module, the software already works with a serial cable (if you set up /etc/ security/console.perms to give the serial device to the console user) - serial cable doesn't require a kernel module (anymore, it use to)
The problem I'm having with the software (TiLP) and USB isn't just limited to authentication, but that is a hurdle I'll need to overcome once I get it to work with the root user (which it currently does not).
The device node part is easy - same procedure as serial ports.
Problem is that the software also (for some reason) wants the user to have permission to write (according to the error log anyway) to /proc/ bus/usb/devices - that I don't think can be properly overcome with pam console, and if it can - I would be scared to do so because that looks way too generic to let the console user write to it, so maybe it's the software that is broken - but maybe I'm not understanding how user space apps are suppose to talk to usb devices?
I'm not the TiLP developer, just someone trying to get it to work w/ usb in FC3 - and having little success (I did get it work ONCE as root in FC2)
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