Re: [Gumstix-users] Easiest way to close serial terminal?

[Steve D. <SJD...@cs...>]

Hi all,

Here is a clue. If I do not try to set the PC's port according
to the canonical input example, then the corresponding read
program will work fine. So some of the supposedly sane
settings here are responsible for the issue:

tcgetattr(fd,&oldtio); /* save current serial port settings */
bzero(&newtio, sizeof(newtio)); /* clear struct for new port settings
*/
newtio.c_cflag = BAUDRATE | CRTSCTS | CS8 | CLOCAL | CREAD;
newtio.c_iflag = IGNPAR | ICRNL;
newtio.c_oflag = 0;
newtio.c_lflag = ICANON;
newtio.c_cc[VINTR]    = 0;     /* Ctrl-c */ 
newtio.c_cc[VQUIT]    = 0;     /* Ctrl-\ */
newtio.c_cc[VERASE]   = 0;     /* del */
newtio.c_cc[VKILL]    = 0;     /* @ */
newtio.c_cc[VEOF]     = 4;     /* Ctrl-d */
newtio.c_cc[VTIME]    = 0;     /* inter-character timer unused */
newtio.c_cc[VMIN]     = 1;     /* blocking read until 1 character
arrives */
newtio.c_cc[VSWTC]    = 0;     /* '\0' */
newtio.c_cc[VSTART]   = 0;     /* Ctrl-q */ 
newtio.c_cc[VSTOP]    = 0;     /* Ctrl-s */
newtio.c_cc[VSUSP]    = 0;     /* Ctrl-z */
newtio.c_cc[VEOL]     = 0;     /* '\0' */
newtio.c_cc[VREPRINT] = 0;     /* Ctrl-r */
newtio.c_cc[VDISCARD] = 0;     /* Ctrl-u */
newtio.c_cc[VWERASE]  = 0;     /* Ctrl-w */
newtio.c_cc[VLNEXT]   = 0;     /* Ctrl-v */
newtio.c_cc[VEOL2]    = 0;     /* '\0' */    
tcflush(fd, TCIFLUSH);
tcsetattr(fd,TCSANOW,&newtio);

thanks,
 steve d.


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