Added circFreeGet()
circbuff: added circSizeGet()
Latency and bandwith tests are OK for this driver
Port types refactoring
Removed old stuff
Removed more old stuff
Added functions to check FIFO state
Increased buffer size, added option for buffer backoff
Debug for circbuff is turned off
Driver uses FIFO state checking instead of pooling, RX buffer now has backoff option, various refactoring
Bump up to version v1.0.3
Added circFlush()
Added functions to flush FIFO buffers
Driver can flush buffers, works well
Removed LOG_INFO()
First release
Some refactoring