static void serial_close(struct tty_struct *tty, struct file * filp)
{
struct usb_serial_port *port = (struct usb_serial_port *) tty->driver_data;
struct usb_serial *serial = get_usb_serial (port, __FUNCTION__);
if (!serial) {
return;
}
dbg(__FUNCTION__ " - port %d", port->number);
if (!port->open_count) {
dbg (__FUNCTION__ " - port not opened");
return;
}
/* pass on to the driver specific version of this function if it is available */
if (serial->type->close) {
serial->type->close(port, filp);
if (serial->type->owner)
__MOD_DEC_USE_COUNT(serial->type->owner);
} else {
generic_close(port, filp);
}
}
static PyObject *
GenericStreamType__del__(genericstreamobject *self, PyObject *args)
{
if (generic_close(self) == -1)
return NULL;
Py_RETURN_NONE;
}
static void generic_shutdown (struct usb_serial *serial)
{
int i;
dbg (__FUNCTION__);
/* stop reads and writes on all ports */
for (i=0; i < serial->num_ports; ++i) {
while (serial->port[i].open_count > 0) {
generic_close (&serial->port[i], NULL);
}
}
}
static void __serial_close(struct usb_serial_port *port, struct file *filp)
{
if (!port->open_count) {
dbg ("%s - port not opened", __FUNCTION__);
return;
}
--port->open_count;
if (port->open_count <= 0) {
/* only call the device specific close if this
* port is being closed by the last owner */
if (port->serial->type->close)
port->serial->type->close(port, filp);
else
generic_close(port, filp);
port->open_count = 0;
}
if (port->serial->type->owner)
__MOD_DEC_USE_COUNT(port->serial->type->owner);
}
