C++ (Cpp) to_usb_serial_portの例

コード例 #1

ファイル: bus.c プロジェクト: Antonio-Zhou/Linux-2.6.11

static int usb_serial_device_remove (struct device *dev)
{
	struct usb_serial_device_type *driver;
	struct usb_serial_port *port;
	int retval = 0;
	int minor;

	port = to_usb_serial_port(dev);
	if (!port) {
		return -ENODEV;
	}

	driver = port->serial->type;
	if (driver->port_remove) {
		if (!try_module_get(driver->owner)) {
			dev_err(dev, "module get failed, exiting\n");
			retval = -EIO;
			goto exit;
		}
		retval = driver->port_remove (port);
		module_put(driver->owner);
	}
exit:
	minor = port->number;
	tty_unregister_device (usb_serial_tty_driver, minor);
	dev_info(dev, "%s converter now disconnected from ttyUSB%d\n",
		 driver->name, minor);

	return retval;
}

コード例 #2

ファイル: bus.c プロジェクト: Antonio-Zhou/Linux-2.6.11

static int usb_serial_device_probe (struct device *dev)
{
	struct usb_serial_device_type *driver;
	struct usb_serial_port *port;
	int retval = 0;
	int minor;

	port = to_usb_serial_port(dev);
	if (!port) {
		retval = -ENODEV;
		goto exit;
	}

	driver = port->serial->type;
	if (driver->port_probe) {
		if (!try_module_get(driver->owner)) {
			dev_err(dev, "module get failed, exiting\n");
			retval = -EIO;
			goto exit;
		}
		retval = driver->port_probe (port);
		module_put(driver->owner);
		if (retval)
			goto exit;
	}

	minor = port->number;
	tty_register_device (usb_serial_tty_driver, minor, dev);
	dev_info(&port->serial->dev->dev, 
		 "%s converter now attached to ttyUSB%d\n",
		 driver->name, minor);

exit:
	return retval;
}

コード例 #3

static ssize_t show_port_number(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct usb_serial_port *port = to_usb_serial_port(dev);

	return sprintf(buf, "%d\n", port->number - port->serial->minor);
}

コード例 #4

static int usb_serial_device_probe(struct device *dev)
{
	struct usb_serial_driver *driver;
	struct usb_serial_port *port;
	int retval = 0;
	int minor;

	port = to_usb_serial_port(dev);
	if (!port) {
		retval = -ENODEV;
		goto exit;
	}
<<<<<<< HEAD

コード例 #5

ファイル: bus.c プロジェクト: Antonio-Zhou/Linux-2.6.11

static int usb_serial_device_match (struct device *dev, struct device_driver *drv)
{
	struct usb_serial_device_type *driver;
	const struct usb_serial_port *port;

	/*
	 * drivers are already assigned to ports in serial_probe so it's
	 * a simple check here.
	 */
	port = to_usb_serial_port(dev);
	if (!port)
		return 0;

	driver = to_usb_serial_driver(drv);

	if (driver == port->serial->type)
		return 1;

	return 0;
}