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2
.gitignore vendored

@ -1,2 +0,0 @@
hello
gpio

BIN
gpio

Binary file not shown.

@ -6,46 +6,26 @@ int main(int argc, char *argv[]){
int fd; int fd;
//export //export
fd= open("/sys/class/gpio/chip0/export",O_WRONLY); fd= open("/sys/class/gpio/chip0/export",O_WRONLY);
if (fd<0){
perror("Error opening the GPIO path");
return -1;
}
write(fd,"17",2); write(fd,"17",2);
close(fd); close(fd);
//pin direction //pin direction
fd= open("/sys/class/gpio/chip0/gpio17/direction",O_WRONLY); fd= open("/sys/class/gpio/chip0/gpio17/direction",O_WRONLY);
if (fd<0){
perror("Error opening the GPIO path");
return -1;
}
write(fd,"out",3); write(fd,"out",3);
close(fd); close(fd);
//pin value //pin value
fd= open("/sys/class/gpio/chip0/gpio17/value",O_WRONLY); fd= open("/sys/class/gpio/chip0/gpio17/value",O_WRONLY);
if (fd<0){
perror("Error opening the GPIO path");
return -1;
}
write(fd,"1",1); write(fd,"1",1);
close(fd); close(fd);
sleep(1); sleep(1);
//pin value //pin value
fd= open("/sys/class/gpio/chip0/gpio17/value",O_WRONLY); fd= open("/sys/class/gpio/chip0/gpio17/value",O_WRONLY);
if (fd<0){
perror("Error opening the GPIO path");
return -1;
}
write(fd,"0",1); write(fd,"0",1);
close(fd); close(fd);
sleep(1); sleep(1);
//unexport //unexport
fd= open("/sys/class/gpio/chip0/unexport",O_WRONLY); fd= open("/sys/class/gpio/chip0/unexport",O_WRONLY);
if (fd<0){
perror("Error opening the GPIO path");
return -1;
}
write(fd,"17",2); write(fd,"17",2);
close(fd); close(fd);

@ -1,9 +1,6 @@
# Introduction # Introduction
How to compile How to compile
```bash ```bash
gcc main.c -o hello gcc main.c -o hello
``` ```
#Issues
-[]Error catcher

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