- o -

• obj : ChibiOS::Shared_DMA::dma_lock , DIR , FIL
• obj_channels : RC_Channels , SRV_Channels
• object_ptr : AP_Param::param_override
• objsize : FFOBJID
• OBS_BUFFER_LENGTH : NavEKF2_core
• obs_buffer_length : NavEKF3_core
• obs_msg : SITL::Vicon
• observation : AP_OpticalFlow_Pixart::MotionBurst
• obsIndex : NavEKF2_core , NavEKF3_core
• odd_even : _USB_OTG_HPTXSTS_TypeDef
• oddfrm : _USB_OTG_HCCHAR_TypeDef
• odom_enable : SITL::SITL
• oe : Linux::GPIO_BBB::GPIO
• ofDataDelayed : NavEKF2_core , NavEKF3_core
• ofDataNew : NavEKF2_core , NavEKF3_core
• offdiag : AccelCalibrator::param_t , CompassCalibrator::param_t
• offdiagonals : Compass::mag_state
• offmsk : Linux::RCOutput_PRU::pwm_cmd
• offset : AccelCalibrator::param_t , AP_Airspeed , AP_Compass_MMC3416 , AP_Param::GroupInfo , AP_Radio_cc2500 , AP_Radio_cypress , Compass::mag_state , CompassCalibrator::param_t , IOPacket , log_AIRSPEED , log_EKF5 , log_NKF5 , RangeFinder::RangeFinder_State , StorageManager::StorageArea , telem_firmware
• offset_x : log_Compass
• offset_y : log_Compass
• offset_z : log_Compass
• offsetEast : log_EKF4 , log_NKF4
• offsetHigh : log_RngBcnDebug
• offsetLow : log_RngBcnDebug
• OffsetMaxInnovFilt : NavEKF2_core
• OffsetMinInnovFilt : NavEKF2_core
• offsetNorth : log_EKF4 , log_NKF4
• offsets : CompassLearn::sample
• offst_factor : AP_Baro_ICM20789
• ofsI : AP_GPS_UBLOX::ubx_mon_hw2 , log_Ubx2
• ofsQ : AP_GPS_UBLOX::ubx_mon_hw2 , log_Ubx2
• ofStoreIndex : NavEKF2_core , NavEKF3_core
• oil_px : SITL::FGNetFDM
• oil_temp : SITL::FGNetFDM
• old_group_element : AP_Param::ConversionInfo
• old_key : AP_Param::ConversionInfo
• oldest : DataFlash_MAVLink::dm_block_queue
• on : Buzzer::buzzer_flag_type
• on_disarm_handler : F4Light::Scheduler
• onGround : NavEKF2_core , NavEKF3_core
• onoff : SITL::Tracker
• opened_control_socket : SITL::JSBSim
• opened_fdm_socket : SITL::JSBSim
• optarg : GetOptLong
• opterr : GetOptLong
• optflow_data : AP_OpticalFlow_SITL
• optflow_delay : AP_OpticalFlow_SITL
• optflow_pos_offset : SITL::SITL
• optFlowFusionDelayed : NavEKF2_core , NavEKF3_core
• opticalflow : AP_HAL::HAL
• optind : GetOptLong
• options : Location
• optopt : GetOptLong
• optstring : GetOptLong
• order : Linux::CAN::TxItem
• orient1 : log_RFND
• orient2 : log_RFND
• orient_cos_yaw : AP_Beacon_Backend
• orient_sin_yaw : AP_Beacon_Backend
• orient_yaw : AP_Beacon
• orient_yaw_deg : AP_Beacon_Backend
• orientation : AP_Proximity::Proximity_Distance_Array , Compass::mag_state , RangeFinder::RangeFinder_State
• origin : AHRS_state
• origin_alt : AP_Beacon , Location_Option_Flags
• origin_lat : AP_Beacon
• origin_lon : AP_Beacon
• origin_type : log_ORGN
• originHgt : log_EKF1
• os_hash_str : AP_FWVersion
• oswald : SITL::Plane
• OTG_Mode : _OTG
• OTG_PrevState : _OTG
• OTG_State : _OTG
• otgintr : _USB_OTG_GINTMSK_TypeDef , _USB_OTG_GINTSTS_TypeDef
• out : _USB_OTG_DAINT_TypeDef , Linux::GPIO_BBB::GPIO , PX4::NSHShellStream , VRBRAIN::NSHShellStream
• out_ep : _DCD
• out_state : AP_ADSB
• out_timers : F4Light::RCOutput
• OUTEP_REGS : USB_OTG_core_regs
• outepintr : _USB_OTG_GINTMSK_TypeDef , _USB_OTG_GINTSTS_TypeDef
• output : Linux::RCOutput_Disco::output_table_t
• output_pitch : AP_Mount_Alexmos::alexmos_params
• output_pwm : SRV_Channel
• output_ready : HALSITL::SITL_State
• output_roll : AP_Mount_Alexmos::alexmos_params
• output_scaled : SRV_Channels::srv_function
• output_sum : Compass_PerMotor
• output_table : Linux::RCOutput_Disco
• output_yaw : AP_Mount_Alexmos::alexmos_params
• outputDataDelayed : NavEKF2_core , NavEKF3_core
• outputDataNew : NavEKF2_core , NavEKF3_core
• outputs : PX4::PX4RCOutput , VRBRAIN::VRBRAINRCOutput
• outputTrackError : NavEKF2_core , NavEKF3_core
• overheat : SITL::ICEngine
• overtime_threshold_micros : AP::PerfInfo
• owner : F4Light::SPIDevice