root/rt-thread @ 28f91a86f5efff1d8d642097ec1b7ccfef6520bb

guo fb7b9f4fb4 Merge pull request #5318 from enkiller/1201		4 lat temu
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SConscript	5ac5d92cbb [serial] 优化发送非阻塞时，serial_close未执行rt_completion_done的问题。	4 lat temu
serial.c	67e14adc4f [posix] 按照高级unix环境编程整理IO类别	4 lat temu
serial_v2.c	fb7b9f4fb4 Merge pull request #5318 from enkiller/1201	4 lat temu