This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12]

Crb::Angle
Crb::Battery	Contains the battery state and can control the robot's power
▼Clx16a::BusBackend
Crb::SmartServoBusBackend
Crb::Buttons
Crb::Leds
Crb::Manager	The main library class for working with the RBCX board. Call the install() method at the start of your program
Crb::Motor
Crb::MotorChangeBuilder	Helper class for building the motor change event
Crb::Mpu	Helper class for controlling the Mpu
Crb::MpuMotion6
Crb::MpuMotion9
Crb::MpuVector
Crb::Nvs
Crb::Oled	Helper class for controlling the Oled
Crb::Piezo	Helper class for controlling the piezo
Crb::StupidServo
Crb::Timers
Crb::Ultrasound