1 // SPDX-License-Identifier: GPL-2.0
3  * USB Serial Converter Bus specific functions
5  * Copyright (C) 2002 Greg Kroah-Hartman (greg@kroah.com)
24 	 * a simple check here.  in usb_serial_device_match()
32 	if (driver == port->serial->type)  in usb_serial_device_match()
48 		return -ENODEV;  in usb_serial_device_probe()
51 	retval = usb_autopm_get_interface(port->serial->interface);  in usb_serial_device_probe()
55 	driver = port->serial->type;  in usb_serial_device_probe()
56 	if (driver->port_probe) {  in usb_serial_device_probe()
57 		retval = driver->port_probe(port);  in usb_serial_device_probe()
62 	minor = port->minor;  in usb_serial_device_probe()
63 	tty_dev = tty_port_register_device(&port->port, usb_serial_tty_driver,  in usb_serial_device_probe()
70 	usb_autopm_put_interface(port->serial->interface);  in usb_serial_device_probe()
72 	dev_info(&port->serial->dev->dev,  in usb_serial_device_probe()
74 		 driver->description, minor);  in usb_serial_device_probe()
79 	if (driver->port_remove)  in usb_serial_device_probe()
80 		driver->port_remove(port);  in usb_serial_device_probe()
82 	usb_autopm_put_interface(port->serial->interface);  in usb_serial_device_probe()
97 		return -ENODEV;  in usb_serial_device_remove()
102 	 * Note that no further runtime PM callbacks will be made if  in usb_serial_device_remove()
105 	autopm_err = usb_autopm_get_interface(port->serial->interface);  in usb_serial_device_remove()
107 	minor = port->minor;  in usb_serial_device_remove()
110 	driver = port->serial->type;  in usb_serial_device_remove()
111 	if (driver->port_remove)  in usb_serial_device_remove()
112 		retval = driver->port_remove(port);  in usb_serial_device_remove()
115 		 driver->description, minor);  in usb_serial_device_remove()
118 		usb_autopm_put_interface(port->serial->interface);  in usb_serial_device_remove()
127 	ssize_t retval = usb_store_new_id(&usb_drv->dynids, usb_drv->id_table,  in new_id_store()
130 	if (retval >= 0 && usb_drv->usb_driver != NULL)  in new_id_store()
131 		retval = usb_store_new_id(&usb_drv->usb_driver->dynids,  in new_id_store()
132 					  usb_drv->usb_driver->id_table,  in new_id_store()
133 					  &usb_drv->usb_driver->drvwrap.driver,  in new_id_store()
142 	return usb_show_dynids(&usb_drv->dynids, buf);  in new_id_show()
156 	spin_lock(&drv->dynids.lock);  in free_dynids()
157 	list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {  in free_dynids()
158 		list_del(&dynid->node);  in free_dynids()
161 	spin_unlock(&drv->dynids.lock);  in free_dynids()
165 	.name =		"usb-serial",
176 	driver->driver.bus = &usb_serial_bus_type;  in usb_serial_bus_register()
177 	spin_lock_init(&driver->dynids.lock);  in usb_serial_bus_register()
178 	INIT_LIST_HEAD(&driver->dynids.list);  in usb_serial_bus_register()
180 	retval = driver_register(&driver->driver);  in usb_serial_bus_register()
188 	driver_unregister(&driver->driver);  in usb_serial_bus_deregister()