while writing to a imx-serial device is probably thoroughly tested - and obviosly works for the debug-serial - using a serial driver to read data received over the serial interface does not work reliably.
the patches in this series address issues found during the implementation of a custom uboot-command to query a coprocessor, connected to an imx8mm over uart4, for mainboard-identification strings Johannes Schneider (2): serial: mxc: enable the RX pipeline serial: mxc: have putc use the TXFIFO drivers/serial/serial_mxc.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) -- 2.25.1
