Date: Sun, 18 Feb 1996 21:24:42 -0300 (EST) From: "Lenzi, Sergio" <lenzi@cwbone.bsi.com.br> To: "Brian J. McGovern" <mcgovern@spoon.beta.com> Cc: questions@freebsd.org Subject: Re: tc* questions... Message-ID: <Pine.BSF.3.91.960218211006.315D-100000@lenzi> In-Reply-To: <199602181553.KAA11380@spoon.beta.com>
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On Sun, 18 Feb 1996, Brian J. McGovern wrote:
>
> I have been playing with tcgetattr and tcsetattr with some reasonable
> success. However, I'm now curious how to do it the "right" way.
>
> What flags should I set to put a terminal in such a mode so that
> characters aren't echo'ed, and characters typed are returned
> immediately? I've played with ECHO, CLOCAL, and ICANON to some success.
use the c_lflags &= (~ECHO | ~ICANON)
c_cc[VMIN]=1;
c_cc[V_TIME]=1;
after...
tcsetattr(file_handler,TCSANOW,&termios)
I prefer:
if (fork() == 0) {
execlp("stty","stty","-echo",
"-icanon",
"time","1",
"min","1",
"clocal",NULL);
}
wait(NULL);
...
...
>
> What flags should I set for a modem for a "normal dialout"?
> ie - port doesn't echo (the device will echo the characters)
> - characters should be read() immediately (again, no waiting for CR)
>
-echo, -icanon,min 1, time 1.
> Any changes for inbound calls?
I use the ttydx device with a direct rs232 cable and a modem initialized
with:
at&c1&d2s0=1&w
>
> Lastly, is there any way to directly look at some of the line signals (CD,DTR,
> etc)?
>
there is an ioctl in the termios.h....
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