Date: Sun, 9 Jan 2005 11:41:40 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Brandon Fosdick <bfoz@bfoz.net> Cc: freebsd-stable@freebsd.org Subject: Re: ucom and sio Message-ID: <200501091141.40752.doconnor@gsoft.com.au> In-Reply-To: <41E08199.3000405@bfoz.net> References: <40170.4.248.235.201.1104333403.squirrel@4.248.235.201> <200501091115.00779.doconnor@gsoft.com.au> <41E08199.3000405@bfoz.net>
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On Sun, 9 Jan 2005 11:28, Brandon Fosdick wrote:
> Daniel O'Connor wrote:
> > Is it blocking waiting for carrier detect to come up?
> > Try using the cuaNN device instead.
>
> The software in question worked fine using a cuaNN device until said
> device died.
>
> Somebody else mentioned that I could set the device to ignore the
> carrier detect signal. How do I do that? Is it a flag to tcsetattr() or
> some kind of ioctl?
Something like this should work..
if ((sfd = open(portfname, O_RDWR | O_NONBLOCK)) == -1) {
fprintf(stderr, "Couldn't open serial port - %s\n", strerror(errno));
exit(1);
}
if (tcgetattr(sfd, &tp) == -1) {
fprintf(stderr, "Couldn't get attr - %s\n", strerror(errno));
exit(1);
}
tp.c_cflag = CLOCAL;
if (tcflush(sfd, TCIOFLUSH) == -1) {
fprintf(stderr, "Couldn't flush - %s\n", strerror(errno));
exit(1);
}
if (tcsetattr(sfd, TCSANOW, &tp) == -1) {
fprintf(stderr, "Couldn't set attrs - %s\n", strerror(errno));
exit(1);
}
ie setting CLOCAL.
--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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