/*
 * wiringpi setup [MODE]
 *     MODE is one of -g -1 -p, as for gpio(1)
 *     optional, if not called is equivalent to saying just "setup"
 *     may not be called after any other wiringpi use in whole program
 *     there is no way to un-setup
 *
 * Most of the rest are very similar to gpio(1):
 *   boardRev => integer (see wiringPi.h)
 *   boardId => [list MODEL REV MEM MAKER OVERVOLTED]
 *   mode PIN MODE
 *       MODEs are
 *             in out pwm pwmTone clock up down tri off
 *             alt0 alt1 alt2 alt3 alt4 alt5
 *   read PIN => 0|1
 *   write PIN 0|1
 *   aread PIN => VAL
 *   write PIN VAL
 *   pwm PIN VAL
 *   clock PIN FREQ
 *   pwm-bal|pwm-ms
 *   pwmr RANGE
 *   pwmc DIVIDER
 *   pwmTone PIN FREQ
 */
/* ---8<--- end of documentation comment --8<-- */