diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/cp210x.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index ee0139eb6636..4f90573c0d2b 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -1113,11 +1113,13 @@ static int cp210x_set_chars(struct usb_serial_port *port, static bool cp210x_termios_change(const struct ktermios *a, const struct ktermios *b) { - bool iflag_change; + bool iflag_change, cc_change; iflag_change = ((a->c_iflag ^ b->c_iflag) & (INPCK | IXON | IXOFF)); + cc_change = a->c_cc[VSTART] != b->c_cc[VSTART] || + a->c_cc[VSTOP] != b->c_cc[VSTOP]; - return tty_termios_hw_change(a, b) || iflag_change; + return tty_termios_hw_change(a, b) || iflag_change || cc_change; } static void cp210x_set_flow_control(struct tty_struct *tty, @@ -1132,7 +1134,9 @@ static void cp210x_set_flow_control(struct tty_struct *tty, if (old_termios && C_CRTSCTS(tty) == (old_termios->c_cflag & CRTSCTS) && I_IXON(tty) == (old_termios->c_iflag & IXON) && - I_IXOFF(tty) == (old_termios->c_iflag & IXOFF)) { + I_IXOFF(tty) == (old_termios->c_iflag & IXOFF) && + START_CHAR(tty) == old_termios->c_cc[VSTART] && + STOP_CHAR(tty) == old_termios->c_cc[VSTOP]) { return; } |