[davilla]

you have "/sys/class" permissions which the xbmc code will take care of if you are rooted, (you have su binary). There are also device permissions in /dev/am* that might need tweaking. Basically, you really need to bug the crap out of your vendor to get these permissions fixes so that XBMC can access the required resources.

It's not really XBMC's job to be tweaking permissions of firmware devices.