RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ serialX-dev

guo 52cb2f0b7e [lwIP] apply AF_UNIX feature (#6954)		2 лет назад
..
arch	577d619d4c [net][lwip] Support windows simulator (#5993)	3 лет назад
netif	b2fa700c2a [lwip] integrate and improve lwipopts.h (#5613)	3 лет назад
README.md	6895da5307 [net] adjust folder structure (#5587)	3 лет назад
SConscript	e96e3e07f5 [lwip] integrate lwip porting layer (#5606)	3 лет назад
ethernetif.c	52cb2f0b7e [lwIP] apply AF_UNIX feature (#6954)	2 лет назад
lwipopts.h	4c92886ee5 [net/lwip] Fix ppp retry assert error when tcp is connect.	3 лет назад
lwippools.h	b2fa700c2a [lwip] integrate and improve lwipopts.h (#5613)	3 лет назад
sys_arch.c	99bdf978d7 [rtdef] use lower-case to define attributes (#6728)	3 лет назад

This folder is common for LWIP.