RT-Thread/rt-thread: https://github.com/RT-Thread/rt-thread.git @ ac032ad07fa280477d785c41bdedbd2b68d81517

огледало од https://github-proxy.rt-thread.io/RT-Thread/rt-thread.git

weety 624d947e56 use __rt_ffs instead of ffs		пре 12 година
..
drivers	624d947e56 use __rt_ffs instead of ffs	пре 12 година
rtdevice.h	639bd30321 reimplement ringbuffer	пре 12 година