라즈베리 파이 - wiring pi GPIO 인터럽트

흐음.. 한번 써봐야지

int waitForInterrupt (int pin, int timeOut) ;

gpio edge 0 falling

int wiringPiISR (int pin, int edgeType,  void (*function)(void)) ;

INT_EDGE_FALLING

INT_EDGE_RISING

INT_EDGE_BOTH

INT_EDGE_SETUP

gpio edge <pin> rising/falling/both/none

This enables the given pin for edge interrupt triggering on the rising, falling or both edges. (Or none which disables it)

edge   This exports a GPIO pin  in  the  /sys/class/gpio  directory,  set  the               direction  to  input and set the edge interrupt method to none, rising,               falling or both.  Use like the  export  command  above  and  note  that               BCM_GPIO pin number is used not not wiringPi pin numbering.               Like the export commands above, ownership is set to that of the calling               user, allowing subsequent access from user programs  without  requiring               root/sudo.

[링크 : http://wiringpi.com/reference/priority-interrupts-and-threads/]

[링크 : https://projects.drogon.net/raspberry-pi/wiringpi/functions/]