I am trying to get two way serial communications going between a Windows XP system and a Linux system (RHEL 5). I have
/sbin/agetty -L 9600 ttyS0
I am using a generic USB to serial adaptor on Windows (Unitek) and a null modem cable.
I have putty configured for 9600 baud, 8 bits, no parity, one stop bit, no flow control.
I get the login prompt from agetty in the putty window but input does not work; I see weird characters in the putty screen. I can echo output into the device from windows and see it, but
cat < /dev/ttyS0
just prints out weird characters from what I type.
Any and all suggestions will be welcome.