1 files changed, 10 insertions, 0 deletions
diff --git a/src/obd2/extras.c b/src/obd2/extras.c
index 905ef89d..37a55fe2 100644
--- a/src/obd2/extras.c
+++ b/src/obd2/extras.c
@@ -1,4 +1,5 @@
 #include <obd2/extras.h>
+#include <obd2/obd2.h>
 
 // TODO everything below here is for future work...not critical for now.
 
@@ -7,18 +8,25 @@ DiagnosticRequestHandle diagnostic_request_malfunction_indicator_status(
         DiagnosticMilStatusReceived callback) {
     // TODO request malfunction indicator light (MIL) status - request mode 1
     // pid 1, parse first bit
+    DiagnosticRequestHandle handle;
+    return handle;
 }
 
 DiagnosticRequestHandle diagnostic_request_vin(DiagnosticShims* shims,
         DiagnosticVinReceived callback) {
+    DiagnosticRequestHandle handle;
+    return handle;
 }
 
 DiagnosticRequestHandle diagnostic_request_dtc(DiagnosticShims* shims,
         DiagnosticTroubleCodeType dtc_type,
         DiagnosticTroubleCodesReceived callback) {
+    DiagnosticRequestHandle handle;
+    return handle;
 }
 
 bool diagnostic_clear_dtc(DiagnosticShims* shims) {
+    return false;
 }
 
 DiagnosticRequestHandle diagnostic_enumerate_pids(DiagnosticShims* shims,
@@ -26,4 +34,6 @@ DiagnosticRequestHandle diagnostic_enumerate_pids(DiagnosticShims* shims,
     // before calling the callback, split up the received bytes into 1 or 2 byte
     // chunks depending on the mode so the final pid list is actual 1 or 2 byte PIDs
     // TODO request supported PIDs  - request PID 0 and parse 4 bytes in response
+    DiagnosticRequestHandle handle;
+    return handle;
 }