TTY without echos
Shawn Hayes
shawn at jdyx.UUCP
Mon Mar 26 03:09:47 AEST 1990
I'm trying to set up a program to read and write characters to a tty
port. What I would like to have happen is I read a character from the port
and if it's a numeric character I echo it back, and if it is anything else
I ignore it. Currently I can type in alphabetic characters and they are ignored
, but as soon as I echo a numeric character back to the terminal the port
echoes every character.
I've set up the port with a stty -echo -echoe -echok raw
but something must still be wrong in the setup. Is there a way to configure
a tty port to never echo characters, so that only the output from my program
shows up on the port?
Shawn Hayes
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