Hi, > Not enabling the FIFO was a deliberate decision.
Thanks, that is I want to hear. I cannot jude whether the code is something mistaken or intentionally disabled FIFO. I want to use JumboSPOT (RF modem for ham radio via UART) with Banana Pi BPI-M1, so enabling 16550 FIFO is important for such a system. But, I agree writing safe code to support many variant 16550. This is more important thing. Regards, -- SASANO Takayoshi (JG1UAA) <u...@mx5.nisiq.net>