On Wed, Mar 8, 2023 at 2:26 PM Xiang Xiao <xiaoxiang781...@gmail.com> wrote:
> > Since the code to handle the special process is very small, is it better to > always allow application change ECHO and OPOST through TCSETS? So, the > special function or program can disable ECHO/OPOST programmatically. Only if termios support is enabled in Kconfig (CONFIG_SERIAL_TERMIOS), I think. Else all serial setup is static and cannot be altered programmatically -- this makes sense when connected to a dedicated device, such as MCU UART connected directly to another MCU UART or some sensor chip or interface chip with serial setup that never changes. Nathan
