I am trying to enable the SIM slot under the RF card but with no success whatsoever. I'm using Voyage 0.8 (a stripped off Debian distribution) as an operating system. A bit of searching landed me to the following steps:echo 1 > /sys/class/gpio/exportecho out > /sys/class/gpio/GPIO1/directionecho 1 > /sys/class/gpio/GPIO1/valueBut when I do echo 1 > /sys/class/gpio/export, it says invalid argument.Also I cannot find anything under /sys/class/gpio except export and unexport. I learnt that there should be something like GPIO1, etc.I have the feeling that the driver itself in not installed or may need to be reconfigured. Please tell me from where to get the GPIO driver?Since ALIX6F2 lacks a buzzer, I unloaded the pcspkr module too, but with no success.
How to enable second SIM slot in ALIX6F2 and how to switch 3G to it from the 1st one?
debian;modem;mobile;gpio