commander: add command to power off

src/modules/commander/Commander.cpp

@@ -419,6 +419,14 @@ int Commander::custom_command(int argc, char *argv[])
 		}
 	}
 
+	if (!strcmp(argv[0], "poweroff")) {
+
+		bool ret = send_vehicle_command(vehicle_command_s::VEHICLE_CMD_PREFLIGHT_REBOOT_SHUTDOWN,
+						2.0f);
+
+		return (ret ? 0 : 1);
+	}
+
 
 #endif
 
@@ -4175,6 +4183,7 @@ The commander module contains the state machine for mode switching and failsafe
 	PRINT_MODULE_USAGE_COMMAND("set_ekf_origin");
 	PRINT_MODULE_USAGE_ARG("lat, lon, alt", "Origin Latitude, Longitude, Altitude", false);
 	PRINT_MODULE_USAGE_COMMAND_DESCR("lat|lon|alt", "Origin latitude longitude altitude");
+	PRINT_MODULE_USAGE_COMMAND_DESCR("poweroff", "Power off board (if supported)");
 #endif
 	PRINT_MODULE_USAGE_DEFAULT_COMMANDS();