diff options
Diffstat (limited to 'components')
| -rw-r--r-- | components/drivers/serial/serial_tty.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/components/drivers/serial/serial_tty.c b/components/drivers/serial/serial_tty.c index f75123eba2..bbf61f8ae0 100644 --- a/components/drivers/serial/serial_tty.c +++ b/components/drivers/serial/serial_tty.c @@ -298,6 +298,16 @@ static int serial_tty_param(struct lwp_tty *tp, struct termios *t) RT_ASSERT(softc); serial = softc->parent; + if (!tty_opened(tp)) + { + /** + * skip configure on open since all configs are copied from the current + * configuration on device. So we don't bother to set it back to device + * again. + */ + return RT_EOK; + } + cfsetispeed(t, t->__c_ispeed); return rt_device_control(&(serial->parent), TCSETS, t); } |