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

[detail level 123]

▼Ntinyppp	TinyPPP internals: PPP engine, HDLC framing and the IP stack
CChecksum	Internet checksum (RFC 1071) over several (possibly odd sized) pieces
CHDLCDecoder	HDLC frame decoder (RFC 1662)
CHDLCEncoder	HDLC frame encoder (RFC 1662)
CIPStack	Minimal IPv4 stack (ICMP echo, UDP, TCP, DNS resolver) for platforms without lwIP
CPPPClient	TCP client over PPP: used like WiFiClient or EthernetClient
CPPPEngine	Portable PPP engine: LCP, PAP client and IPCP over an Arduino Stream
CPPPServer	TCP server over PPP: used like WiFiServer or EthernetServer
CPPPStats	Frame and packet counters of a PPPEngine
CPPPUDP	UDP socket over PPP: used like WiFiUDP or EthernetUDP
CRingBuffer	Byte ring buffer with a fixed capacity of N bytes
▼CTinyPPP_ESP32	PPP network interface for ESP32 (arduino-esp32 3.x): ESP-IDF lwIP PPP via esp_netif, integrated as a NetworkInterface
CDriver
CTinyPPP_Generic	PPP network interface for platforms without lwIP: the PPP engine combined with the TinyPPP IPStack (TCP, UDP, ICMP echo and DNS)
CTinyPPP_RP2040	PPP network interface for RP2040 / RP2350 (arduino-pico): the TinyPPP engine registered as a point-to-point lwIP netif