Hi Geert > Large serial console input (copy and pasting long lines) works, as that uses > DMA. Small serial console input (typing) doesn't work. > > Apparently for the serial port, TCR contains the value we need (< 0x20), > while TCRB always contains 0x20. > Perhaps the code should use the minimum of both registers instead? TCR(= read) happen 1st, and TCRB (= write) happen next. "TCRB always contains 0x20" means, DMA didn't transfer data for some reason ? "use minimum" idea can't guarantee data transfering, same as previous topic I guess. Best regards --- Kuninori Morimoto -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
