Expand compiler flags for static code analysis

src/gpio.c

@@ -108,7 +108,7 @@ int gpio_read(const struct gpio *gpio, unsigned int *value)
 int gpio_write(const struct gpio *gpio, unsigned int value)
 {
     int res;
-    unsigned char mask;
+    unsigned char mask = gpio->ftdi_dev->status_mask;
 
     if(NULL == gpio) {
         return EXIT_FAILURE;

src/main.c

@@ -31,7 +31,7 @@ static const struct gpio gpio_2 = {
     .ftdi_dev = &ftdi_obj,
 };
 
-int main(int argc, char *argv[])
+int main(void)
 {
     int res, cnt;
     unsigned int value;