diff options
Diffstat (limited to 'sys/kern/tty_cons.c')
| -rw-r--r-- | sys/kern/tty_cons.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/kern/tty_cons.c b/sys/kern/tty_cons.c index bac3312..32656f8 100644 --- a/sys/kern/tty_cons.c +++ b/sys/kern/tty_cons.c @@ -97,7 +97,7 @@ static d_open_t *cn_phys_open; /* physical device open function */ struct consdev *cn_tab; /* physical console device info */ static dev_t condev_t; /* represents the device private info */ -CONS_DRIVER(cons, NULL, NULL, NULL, NULL, NULL, NULL); +CONS_DRIVER(cons, NULL, NULL, NULL, NULL, NULL, NULL, NULL); void cninit() @@ -423,6 +423,22 @@ cnputc(c) } } +void +cndbctl(on) + int on; +{ + static int refcount; + + if (cn_tab == NULL) + return; + if (!on) + refcount--; + if (refcount == 0 && cn_tab->cn_dbctl != NULL) + (*cn_tab->cn_dbctl)(cn_tab->cn_dev, on); + if (on) + refcount++; +} + static void cn_drvinit(void *unused) { |
