This page lists the public compile-time configuration API

Define	Default	Valid Range	Description
UDS_SYS	auto-detected	valid values of UDS_SYS	target system
UDS_CUSTOM_MILLIS	unset	set or unset	if unset (default), iso14229 provides UDSMillis() for the detected UDS_SYS platform. If set, the library user must provide their own UDSMillis() implementation.
UDS_TP_ISOTP_SOCK	unset	set or unset	builds transport: Linux kernel ISO-TP socket. Suitable for linux newer than 5.10. See UDSServerTpIsoTpSockInit and UDSClientTpIsoTpSockInit.
UDS_TP_ISOTP_C_SOCKETCAN	unset	set or unset	builds transport: isotp-c over SocketCAN. Suitable for Linux newer than 2.6.25. See UDSTpISOTpCSocketCANInit.
UDS_TP_ISOTP_C	unset*	set or unset	builds transport: isotp-c. Suitable for everything, but you must bring your own CAN interface. See UDSServerTpISOTpCInit, UDSClientTpISOTpCInit and the Porting Guide.
UDS_LOG_LEVEL	UDS_LOG_NONE	valid values for UDS_LOG_LEVEL	iso14229 internal log level. Set UDS_LOG_LEVEL=UDS_LOG_DEBUG for a pleasant first-time bringup experience, then turn it off when you're finished.
UDS_SERVER_DEFAULT_P2_MS	50	-	Default P2 timeout (ms)
UDS_SERVER_DEFAULT_P2_STAR_MS	5000	-	Default P2* timeout (ms)
UDS_SERVER_DEFAULT_S3_MS	5100	-	Session timeout (ms)
UDS_SERVER_DEFAULT_POWER_DOWN_TIME_MS	60	-	Delay before ECU reset (ms)
UDS_SERVER_0x27_BRUTE_FORCE_MITIGATION_BOOT_DELAY_MS	1000	-	Boot delay for security access (ms)
UDS_SERVER_0x27_BRUTE_FORCE_MITIGATION_AUTH_FAIL_DELAY_MS	1000	-	Delay after auth failure (ms)
UDS_SERVER_SEND_BUF_SIZE	4095	-	Send buffer size
UDS_SERVER_RECV_BUF_SIZE	4095	-	Receive buffer size
UDS_CLIENT_DEFAULT_P2_MS	150	-	Default P2 timeout (ms)
UDS_CLIENT_DEFAULT_P2_STAR_MS	1500	-	Default P2* timeout (ms)
UDS_CLIENT_SEND_BUF_SIZE	4095	-	Send buffer size
UDS_CLIENT_RECV_BUF_SIZE	4095	-	Receive buffer size

*except on UDS_SYS=UDS_SYS_ARDUINO and UDS_SYS=UDS_SYS_ESP32, where UDS_TP_ISOTP_C is set by default.