How to prevent serial devices from acting as a console?
i am working on an embedded Board running Linux. It has 3 serial devices (/dev/ttymxc0, /dev/ttymxc1, ...).
I'm using /dev/ttymxc0 to administrate the board using a terminal emulator (putty) and want to use the other two to talk to some hardware. The problem is:
Apparently the operating system has taken over the two spare devices and tries to send a login prompt over them, which is garbage data for the hardware I'm talking to. How can I stop this from happening and just use them to send raw data?
I already tried to set raw mode (stty -F /dev/ttymxc1 raw), but no luck.
Thanks for any advice
PS: Please tell me if you need more information to answer my question.