* Kostik Belousov <kostik...@gmail.com> wrote: > Shouldn't you always report CLOCAL for console then ?
Hmmm... That would be a lot more elegant, also for callout devices. The
change I just committed, doesn't take a loss of SER_DCD into account
after opening the device.
Any comments on the following patch?
%%%
Index: sys/kern/tty.c
===================================================================
--- sys/kern/tty.c (revision 212860)
+++ sys/kern/tty.c (working copy)
@@ -263,12 +263,14 @@
if (!tty_opened(tp)) {
/* Set proper termios flags. */
- if (TTY_CALLOUT(tp, dev)) {
+ if (TTY_CALLOUT(tp, dev))
tp->t_termios = tp->t_termios_init_out;
- } else {
+ else
tp->t_termios = tp->t_termios_init_in;
- }
ttydevsw_param(tp, &tp->t_termios);
+ /* Prevent modem control on callout devices and /dev/console. */
+ if (TTY_CALLOUT(tp, dev) || dev == dev_console)
+ tp->t_termios.c_cflag |= CLOCAL;
ttydevsw_modem(tp, SER_DTR|SER_RTS, 0);
@@ -281,9 +283,8 @@
}
/* Wait for Carrier Detect. */
- if (!TTY_CALLOUT(tp, dev) && (oflags & O_NONBLOCK) == 0 &&
- (tp->t_termios.c_cflag & CLOCAL) == 0 &&
- dev != dev_console) {
+ if ((oflags & O_NONBLOCK) == 0 &&
+ (tp->t_termios.c_cflag & CLOCAL) == 0) {
while ((ttydevsw_modem(tp, 0, 0) & SER_DCD) == 0) {
error = tty_wait(tp, &tp->t_dcdwait);
if (error != 0)
%%%
--
Ed Schouten <e...@80386.nl>
WWW: http://80386.nl/
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