Date: Thu, 13 May 1999 18:00:07 +0900 (KST) From: HyunTech@mail.hitel.net Subject: How can I send/receive data th Message-ID: <199905130900.RAA21231@mail.hitel.net>
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I want to send/receive data to other computer thru serial port without modem.
So, I have connected COM1 to COM2 of itself and programed as follows.
Shell("stty -f /dev/ttyd0 clocal cread raw 9600 cs8 -parenb -cstopb");
Shell("stty -f /dev/ttyd1 clocal cread raw 9600 cs8 -parenb -cstopb");
fd1 = open("/dev/ttyd0", O_RDWR);
fd2 = open("/dev/ttyd1", O_RDWR);
childpid = fork();
if(childpid > 0)
for(;;){
ch = getchar();
write(fd1, &ch, 1);
}
else if(childpid == 0)
for(;;){
rc = read(fd2, &ch, 1);
putchar(ch);
}
But, if press any key, login message is displayed or nothing is displayed.
But, I don't want to use serial port for terminal, but only for data
communication.
How can I solve this problem ?
Regards.
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