RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ 640e5c97775460105964d39befb2867f952f6743

réplica de https://github-proxy.rt-thread.io/RT-Thread/rt-thread.git

Bernard Xiong 9d46ae69a7 [DeviceDrivers] fix the poll_rx issue in serial when there is no data.		%!s(int64=10) %!d(string=hai) anos
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SConscript	b4de7cce57 Re-normalizing the repo	%!s(int64=13) %!d(string=hai) anos
serial.c	9d46ae69a7 [DeviceDrivers] fix the poll_rx issue in serial when there is no data.	%!s(int64=10) %!d(string=hai) anos