You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
721 B
C
35 lines
721 B
C
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
int main(int argc, char *argv[]){
|
|
int fd;
|
|
//export
|
|
fd= open("/sys/class/gpio/chip0/export",O_WRONLY);
|
|
write(fd,"17",2);
|
|
close(fd);
|
|
//pin direction
|
|
fd= open("/sys/class/gpio/chip0/gpio17/direction",O_WRONLY);
|
|
write(fd,"out",3);
|
|
close(fd);
|
|
|
|
//pin value
|
|
fd= open("/sys/class/gpio/chip0/gpio17/value",O_WRONLY);
|
|
write(fd,"1",1);
|
|
close(fd);
|
|
|
|
//unexport
|
|
fd= open("/sys/class/gpio/chip0/unexport",O_WRONLY);
|
|
write(fd,"17",2);
|
|
close(fd);
|
|
|
|
printf("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n");
|
|
printf("Number of arguments: %d\n",argc);
|
|
printf("Program is reciving: %s\n", argv[0]);
|
|
|
|
if(argc > 1)
|
|
printf("Argument: %s\n",argv[1]);
|
|
return 0;
|
|
}
|
|
|