RC_Channel: allocate channel option for loweheiser manual control

libraries/RC_Channel/RC_Channel.cpp

@@ -512,6 +512,11 @@ void RC_Channel::init_aux_function(const aux_func_t ch_option, const AuxSwitchPo
     case AUX_FUNC::MOUNT2_ROLL:
     case AUX_FUNC::MOUNT2_PITCH:
     case AUX_FUNC::MOUNT2_YAW:
+    case AUX_FUNC::LOWEHEISER_STARTER:
+        break;
+
+    // not really aux functions:
+    case AUX_FUNC::LOWEHEISER_THROTTLE:
         break;
     case AUX_FUNC::AVOID_ADSB:
     case AUX_FUNC::AVOID_PROXIMITY:
@@ -1420,6 +1425,11 @@ bool RC_Channel::do_aux_function(const aux_func_t ch_option, const AuxSwitchPos
     case AUX_FUNC::SCRIPTING_8:
         break;
 
+    case AUX_FUNC::LOWEHEISER_THROTTLE:
+    case AUX_FUNC::LOWEHEISER_STARTER:
+        // monitored by the library itself
+        break;
+
     default:
         gcs().send_text(MAV_SEVERITY_INFO, "Invalid channel option (%u)", (unsigned int)ch_option);
         return false;

libraries/RC_Channel/RC_Channel.h

@@ -216,6 +216,8 @@ public:
         QRTL =               108, // QRTL mode
         CUSTOM_CONTROLLER =  109,
         KILL_IMU3 =          110, // disable third IMU (for IMU failure testing)
+        LOWEHEISER_STARTER = 111,  // allows for manually running starter
+
         // if you add something here, make sure to update the documentation of the parameter in RC_Channel.cpp!
         // also, if you add an option >255, you will need to fix duplicate_options_exist
 
@@ -258,6 +260,7 @@ public:
         MOUNT2_ROLL =        215, // mount2 roll input
         MOUNT2_PITCH =       216, // mount3 pitch input
         MOUNT2_YAW =         217, // mount4 yaw input
+        LOWEHEISER_THROTTLE= 218,  // allows for throttle on slider
 
         // inputs 248-249 are reserved for the Skybrush fork at
         // https://github.com/skybrush-io/ardupilot