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/*
* usb port device code
*
* Copyright (C) 2012 Intel Corp
*
* Author: Lan Tianyu <tianyu.lan@intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
*/
#include "hub.h"
static void usb_port_device_release(struct device *dev)
{
struct usb_port *port_dev = to_usb_port(dev);
kfree(port_dev);
}
struct device_type usb_port_device_type = {
.name = "usb_port",
.release = usb_port_device_release,
};
int usb_hub_create_port_device(struct usb_hub *hub, int port1)
{
struct usb_port *port_dev = NULL;
int retval;
port_dev = kzalloc(sizeof(*port_dev), GFP_KERNEL);
if (!port_dev) {
retval = -ENOMEM;
goto exit;
}
hub->ports[port1 - 1] = port_dev;
port_dev->dev.parent = hub->intfdev;
port_dev->dev.type = &usb_port_device_type;
dev_set_name(&port_dev->dev, "port%d", port1);
retval = device_register(&port_dev->dev);
if (retval)
goto error_register;
return 0;
error_register:
put_device(&port_dev->dev);
exit:
return retval;
}
void usb_hub_remove_port_device(struct usb_hub *hub,
int port1)
{
device_unregister(&hub->ports[port1 - 1]->dev);
}
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