Here is a list of all documented namespaces with brief descriptions:

[detail level 123]

▼Nadmittance_controller
CAdmittanceController
CAdmittanceRule
CAdmittanceState
CAdmittanceTransforms
▼Ncontrol_toolbox
CAntiWindupStrategy	Antiwindup strategy for PID controllers
CDither	Gives white noise at specified amplitude
CLimitedProxy
CLowPassFilter	A Low-pass filter class
►CPid	Generic Proportional–Integral–Derivative (PID) controller
CGains	Store gains in a struct to allow easier realtime box usage
CPidROS
CRateLimiter
CSineSweep	Generates a sine sweep for frequency analysis of a joint
CSinusoid	A basic sine class
▼Ngripper_action_controller
►CGripperActionController	Controller for executing a gripper command action for simple single-dof grippers
CCommands	Store position and max effort in struct to allow easier realtime buffer usage
▼Nhardware_interface
CActuatorInfo	Contains semantic info about a given actuator loaded from URDF for a transmission
CActuatorInterface	Virtual Class to implement when integrating a 1 DoF actuator into ros2_control
CAsyncComponentThread
CCommandInterface
CComponentInfo
CControllerInfo	Controller Information
CHandle	A handle used to get and set a value on a given interface
CHandleDataType
CHardwareAsyncParams
CHardwareComponent
CHardwareComponentCycleStatus
CHardwareComponentInfo	Hardware Component Information
CHardwareComponentInterface	Virtual base class for all hardware components (Actuators, Sensors, and Systems)
CHardwareComponentInterfaceParams	Parameters required for the initialization of a specific hardware component plugin. Typically used for on_init methods of hardware interfaces, and is parsed by the user. This struct is typically populated with data from HardwareComponentParams from each component
CHardwareComponentParams	Parameters required for the initialization of a specific hardware component plugin. Typically used for init, initialise and load methods of hardware components. This struct is typically not accessible to user. This struct is typically populated with data from ResourceManagerParams
CHardwareComponentStatisticsData
CHardwareInfo	This structure stores information about hardware defined in a robot's URDF
CHardwareReadWriteStatus
CInterfaceDescription
CInterfaceInfo
CJointInfo	Contains semantic info about a given joint loaded from URDF for a transmission
CLoanedCommandInterface
CLoanedStateInterface
CMimicJoint	This structure stores information about a joint that is mimicking another joint
CResourceManager
CResourceManagerParams	Parameters required for the construction and initial setup of a ResourceManager. This struct is typically populated by the ControllerManager
CResourceStorage
CSensorInterface	Virtual Class to implement when integrating a stand-alone sensor into ros2_control
CStateInterface
CSystemInterface	Virtual Class to implement when integrating a complex system into ros2_control
CTransmissionInfo	Contains semantic info about a given transmission loaded from URDF
▼Njoint_limits
CJointControlInterfacesData
CJointInterfacesCommandLimiterData
CJointLimiterInterface
CJointLimits
CJointSaturationLimiter
CJointSoftLimiter
CSoftJointLimits
▼Njoint_trajectory_controller
CJointTrajectoryController
CSegmentTolerances	Trajectory segment tolerances
CStateTolerances	Trajectory state tolerances for position, velocity and acceleration variables
CTrajectory
▼Nkinematics_interface
CKinematicsInterface
▼Nkinematics_interface_kdl
CKinematicsInterfaceKDL
▼Nkinematics_interface_pinocchio
CKinematicsInterfacePinocchio
Npal_statistics
▼Nparallel_gripper_action_controller
►CGripperActionController	Controller for executing a `ParallelGripperCommand` action
CCommands	Store position and max effort in struct to allow easier realtime buffer usage
▼Npassthrough_controller
CPassthroughController
▼Nposition_controllers
CJointGroupPositionController	Forward command controller for a set of position controlled joints (linear or angular)
▼Nrealtime_tools	A pthread mutex wrapper that provides a mutex with the priority inheritance protocol and a priority ceiling of 99. The mutex is also error checked and robust. This mutex is intended to be used in real-time contexts
CAsyncFunctionHandler	Class to handle asynchronous function calls. AsyncFunctionHandler is a class that allows the user to have a asynchronous call to the parsed method and be able to set some thread specific parameters
CAsyncFunctionHandlerParams	The AsyncFunctionHandlerParams struct is used to configure the AsyncFunctionHandler. If the type is SYNCHRONIZED, the async worker thread will be synchronized with the main thread, as the main thread will be triggering the async callback method. If the type is DETACHED, the async worker thread will be detached from the main thread and will have its own execution cycle
CAsyncSchedulingPolicy	Enum class to define the scheduling policy for the async worker thread. SYNCHRONIZED: The async worker thread will be synchronized with the main thread, as the main thread will be triggering the async callback method. DETACHED: The async worker thread will be detached from the main thread and will have its own execution cycle. UNKNOWN: The scheduling policy is unknown
CLockFreeQueueBase	A base class for lock-free queues
CRealtimeBuffer
CRealtimeClock
CRealtimePublisher
CRealtimeServerGoalHandle
CRealtimeThreadSafeBox
Ntest_constants
▼Ntransmission_interface
CActuatorHandle
CDifferentialTransmission
CDifferentialTransmissionLoader	Class for loading a four-bar linkage transmission instance from configuration data
CException
CFourBarLinkageTransmission	Implementation of a four-bar-linkage transmission
CFourBarLinkageTransmissionLoader	Class for loading a four-bar linkage transmission instance from configuration data
CHandle
CJointHandle
CSimpleTransmission
CSimpleTransmissionLoader	Class for loading a simple transmission instance from configuration data
CTransmission	Abstract base class for representing mechanical transmissions
CTransmissionInterfaceException
CTransmissionLoader	Abstract interface for loading transmission instances from configuration data