big box of fixes and cleanup

bsp_linux/hardware/hardware.c

@@ -40,8 +40,6 @@ const char *get_port_number(const char *path, size_t path_len) {
   return NULL;
 }
 
-
-
 int hw_device_open(const char *path, size_t path_len) {
 
   int serial_fd = serial_open(path, path_len);

bsp_linux/main.c

@@ -14,25 +14,26 @@ int ai_family = AF_UNSPEC;
 
 void mission(void);
 
+void done() { exit(0); }
 
-void done() {
-  exit(0);
-}
-
-void done_error() {
-  exit(1);
-}
+void done_error() { exit(1); }
 
 int test_socket();
 
 // TODO link to GCC's personality or make the linux build not use it?
 void rust_eh_personality() { puts("eh_personality"); }
 
-void print_usage(const char * name) {
-fprintf(stderr, "Usage: %s [-s sim_ip] [-4|6]\n", name);
+void print_usage(const char *name) {
+  fprintf(stderr, "Usage: %s [-s sim_ip] [-4|6]\n", name);
 }
 
+#include <hardware/interfaces.h>
+
 int main(int argc, char **argv) {
+  hw_device_open(
+      "invalidpath",
+      11); // TODO for some weird linker behaviour, if this function is not used
+           // here, it will not be found by the linker when linking the rust lib
   static struct option long_options[] = {
       /*   NAME       ARGUMENT           FLAG  SHORTNAME */
       {"sim_ip", required_argument, NULL, 's'},
@@ -58,9 +59,8 @@ int main(int argc, char **argv) {
         exit(EXIT_FAILURE);
       }
     }
-         }
+  }
 
   mission();
   return 0;
 }
-