Hmm... slightly odd document with some odd misconceptions. among others... "If a pin is connected to a "pull-up" resistor and used to signal a logic level, the

Hmm... slightly odd document with some odd misconceptions. among others... "If a pin is connected to a "pull-up" resistor and used to signal a logic level, then it will be represented in Linux as a "GPIO" Err, no... pull-ups (or downs for that matter) are entirely coincidental with a line being used for GPIO. pull-ups are also used on non-GPIO lines.