Hi, I've started looking at the sysfs gpio interface and saw some notes 
that it's considered obsolete and deprecated. I'm looking for a good 
pointer to the ABI (?) character driver interface for gpio. I'll probably 
find one right after posting this. :)

In case I'm not using the right terminology, the sysfs interface is where 
you go to /sys/class/gpio and echo ## > export to get gpio pins exported 
that you can then interact with?


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