Here are the classes, structs, unions and interfaces with brief descriptions:

CBUTTON_CFG_ts	Configuration structure for initializing a button instance
Cbutton_handle_s	Internal structure representing a single button instance
CCALENDAR_ts	Holds a calendar date (year, month, day, weekday)
CCBUF_HANDLE_ts	Handle representing a circular buffer instance
CCMD_CLIENT_INFO_ts	Describes a subsystem client registering with the command module
CCMD_INFO_ts	Describes a single command exposed by a client
CCMD_RESPONSE_ts	Holds the R1, R3, and R7 response bytes returned by the SD card after a command
CCONSOLE_HANDLE_ts	Configuration handle for initializing the console subsystem
CDATALOG_CFG_ts	Configuration structure for initializing a data log handle
Cdatalog_handle_s	Internal structure representing a single data log instance
CEXTI_REGDEF_ts	EXTI (External Interrupt/Event Controller) peripheral register map
CGPIO_CFG_ts	Configuration structure for initializing a GPIO pin
CGPIO_REGDEF_ts	GPIO peripheral register map
CI2C_CFG_ts	Configuration structure for initializing an I2C peripheral
CI2C_REGDEF_ts	I2C peripheral register map
Cinternal_state_s	Internal state of the SysTick driver
CIO_CFG_ts	Configuration structure for initializing an IO handle
Cio_handle_s	Internal structure representing a single IO instance
CLOG_HANDLE_ts	Configuration handle for initializing the log subsystem
CMENU_CFG_ts	Configuration structure for initializing a menu handle
Cmenu_handle_s	Internal structure representing a single menu instance
CNEO6_CFG_ts	Configuration structure for initializing a NEO-6 handle
Cneo6_handle_s	Internal structure representing the NEO-6 hardware instance
CNEO6_INFO_ts	Holds all GPS data fields parsed from incoming NMEA sentences
CNVIC_IABR_REGDEF_ts	NVIC Interrupt Active Bit Registers (NVIC_IABR)
CNVIC_ICER_REGDEF_ts	NVIC Interrupt Clear-Enable Registers (NVIC_ICER)
CNVIC_ICPR_REGDEF_ts	NVIC Interrupt Clear-Pending Registers (NVIC_ICPR)
CNVIC_IPR_REGDEF_ts	NVIC Interrupt Priority Registers (NVIC_IPR)
CNVIC_ISER_REGDEF_ts	NVIC Interrupt Set-Enable Registers (NVIC_ISER)
CNVIC_ISPR_REGDEF_ts	NVIC Interrupt Set-Pending Registers (NVIC_ISPR)
CNVIC_STIR_REGDEF_ts	NVIC Software Trigger Interrupt Register (NVIC_STIR)
CPWR_REGDEF_ts	PWR (Power Control) peripheral register map
CRCC_REGDEF_ts	RCC (Reset and Clock Control) peripheral register map
CRTC_REGDEF_ts	RTC peripheral register map
CSD_CFG_ts	Configuration structure for initializing an SD card handle
CSD_CSD_INFO_ts	Decoded contents of the SD card CSD register
Csd_handle_s	Internal structure representing a single SD card handle instance
CSPI_CFG_ts	Configuration structure for initializing an SPI peripheral
CSPI_REGDEF_ts	SPI peripheral register map
CSSD1309_CFG_ts	Full configuration structure for initializing an SSD1309 display handle
Cssd1309_handle_s	Internal structure representing the SSD1309 hardware instance
CSYSCFG_REGDEF_ts	SYSCFG (System Configuration Controller) peripheral register map
CSYST_REGDEF_ts	SysTick control and status register block
CSYSTICK_CFG_ts	Configuration structure for initializing the SysTick timer
CTIME_ts	Holds a time-of-day value (hours, minutes, seconds)
CUSART_CFG_ts	Configuration structure for initializing a USART peripheral
CUSART_REGDEF_ts	USART peripheral register map