diff options
Diffstat (limited to 'drivers/usb/serial/digi_acceleport.c')
| -rw-r--r-- | drivers/usb/serial/digi_acceleport.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index 12b0e67473ba..16e8e37b3b36 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -695,11 +695,11 @@ static void digi_set_termios(struct tty_struct *tty, arg = -1; /* reassert DTR and (maybe) RTS on transition from B0 */ - if ((old_cflag&CBAUD) == B0) { + if ((old_cflag & CBAUD) == B0) { /* don't set RTS if using hardware flow control */ /* and throttling input */ modem_signals = TIOCM_DTR; - if (!(tty->termios.c_cflag & CRTSCTS) || + if (!C_CRTSCTS(tty) || !test_bit(TTY_THROTTLED, &tty->flags)) modem_signals |= TIOCM_RTS; digi_set_modem_signals(port, modem_signals, 1); @@ -1251,8 +1251,27 @@ static int digi_port_init(struct usb_serial_port *port, unsigned port_num) static int digi_startup(struct usb_serial *serial) { + struct device *dev = &serial->interface->dev; struct digi_serial *serial_priv; int ret; + int i; + + /* check whether the device has the expected number of endpoints */ + if (serial->num_port_pointers < serial->type->num_ports + 1) { + dev_err(dev, "OOB endpoints missing\n"); + return -ENODEV; + } + + for (i = 0; i < serial->type->num_ports + 1 ; i++) { + if (!serial->port[i]->read_urb) { + dev_err(dev, "bulk-in endpoint missing\n"); + return -ENODEV; + } + if (!serial->port[i]->write_urb) { + dev_err(dev, "bulk-out endpoint missing\n"); + return -ENODEV; + } + } serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL); if (!serial_priv) @@ -1491,8 +1510,8 @@ static int digi_read_oob_callback(struct urb *urb) rts = 0; if (tty) - rts = tty->termios.c_cflag & CRTSCTS; - + rts = C_CRTSCTS(tty); + if (tty && opcode == DIGI_CMD_READ_INPUT_SIGNALS) { spin_lock(&priv->dp_port_lock); /* convert from digi flags to termiox flags */ |