usb_debug.c revision 619b572ae205cea26b147c2cec5ebf19974f4bb0 
1/*
2 * USB Debug cable driver
3 *
4 * Copyright (C) 2006 Greg Kroah-Hartman <greg@kroah.com>
5 *
6 *	This program is free software; you can redistribute it and/or
7 *	modify it under the terms of the GNU General Public License version
8 *	2 as published by the Free Software Foundation.
9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/tty.h>
14#include <linux/module.h>
15#include <linux/usb.h>
16#include <linux/usb/serial.h>
17
18#define USB_DEBUG_MAX_PACKET_SIZE	8
19
20static struct usb_device_id id_table [] = {
21	{ USB_DEVICE(0x0525, 0x127a) },
22	{ },
23};
24MODULE_DEVICE_TABLE(usb, id_table);
25
26static struct usb_driver debug_driver = {
27	.name =		"debug",
28	.probe =	usb_serial_probe,
29	.disconnect =	usb_serial_disconnect,
30	.id_table =	id_table,
31	.no_dynamic_id = 	1,
32};
33
34static int usb_debug_open(struct tty_struct *tty, struct usb_serial_port *port,
35							struct file *filp)
36{
37	port->bulk_out_size = USB_DEBUG_MAX_PACKET_SIZE;
38	return usb_serial_generic_open(tty, port, filp);
39}
40
41static struct usb_serial_driver debug_device = {
42	.driver = {
43		.owner =	THIS_MODULE,
44		.name =		"debug",
45	},
46	.id_table =		id_table,
47	.num_ports =		1,
48	.open =			usb_debug_open,
49};
50
51static int __init debug_init(void)
52{
53	int retval;
54
55	retval = usb_serial_register(&debug_device);
56	if (retval)
57		return retval;
58	retval = usb_register(&debug_driver);
59	if (retval)
60		usb_serial_deregister(&debug_device);
61	return retval;
62}
63
64static void __exit debug_exit(void)
65{
66	usb_deregister(&debug_driver);
67	usb_serial_deregister(&debug_device);
68}
69
70module_init(debug_init);
71module_exit(debug_exit);
72MODULE_LICENSE("GPL");
73