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50 lines
942 B
C
50 lines
942 B
C
#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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int main(int argc, char *argv[]){
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int fd;
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//EXPORT
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fd=open("/sys/class/gpio/chip0/export", O_WRONLY);
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write(fd, "17",2);
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close(fd);
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//PIN DIRECTION
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fd=open("/sys/class/gpio/chip0/gpio17/direction", O_WRONLY);
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write(fd, "out",3);
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close(fd);
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//WRITE VALUE
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fd=open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);
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write(fd, "1",1);
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close(fd);
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sleep(10);
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fd=open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);
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write(fd, "0",1);
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close(fd);
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sleep(10);
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fd=open("/sys/class/gpio/chip0/gpio17/value", O_WRONLY);
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write(fd, "1",1);
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close(fd);
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sleep(10);
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//UNEXPORT
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fd=open("/sys/class/gpio/chip0/gpio17/unexport", O_WRONLY);
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write(fd, "17",2);
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close(fd);
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//
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printf("Hiii hello\n");
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printf("number of arguments: %d \n", argc);
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printf("program is reciving: %s \n", argv[0]);
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if(argc>1){
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printf("Argument %s\n ", argv[1]);
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}
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return 0;
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}
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