hp4x.c revision 3a262b2ea7c0905026c0be3618dba1f825e5387a 
1/*
2 * HP4x Calculators Serial USB driver
3 *
4 * Copyright (C) 2005 Arthur Huillet (ahuillet@users.sf.net)
5 * Copyright (C) 2001-2005 Greg Kroah-Hartman (greg@kroah.com)
6 *
7 *	This program is free software; you can redistribute it and/or modify
8 *	it under the terms of the GNU General Public License as published by
9 *	the Free Software Foundation; either version 2 of the License, or
10 *	(at your option) any later version.
11 *
12 * See Documentation/usb/usb-serial.txt for more information on using this
13 * driver
14 */
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/tty.h>
19#include <linux/module.h>
20#include <linux/usb.h>
21#include <linux/usb/serial.h>
22
23/*
24 * Version Information
25 */
26#define DRIVER_VERSION "v1.00"
27#define DRIVER_DESC "HP4x (48/49) Generic Serial driver"
28
29#define HP_VENDOR_ID 0x03f0
30#define HP49GP_PRODUCT_ID 0x0121
31
32static struct usb_device_id id_table [] = {
33	{ USB_DEVICE(HP_VENDOR_ID, HP49GP_PRODUCT_ID) },
34	{ }					/* Terminating entry */
35};
36
37MODULE_DEVICE_TABLE(usb, id_table);
38
39static struct usb_driver hp49gp_driver = {
40	.name =		"hp4X",
41	.probe =	usb_serial_probe,
42	.disconnect =	usb_serial_disconnect,
43	.id_table =	id_table,
44	.no_dynamic_id = 	1,
45};
46
47static struct usb_serial_driver hp49gp_device = {
48	.driver = {
49		.owner =	THIS_MODULE,
50		.name =		"hp4X",
51	},
52	.id_table =		id_table,
53	.usb_driver = 		&hp49gp_driver,
54	.num_ports =		1,
55};
56
57static int __init hp49gp_init(void)
58{
59	int retval;
60	retval = usb_serial_register(&hp49gp_device);
61	if (retval)
62		goto failed_usb_serial_register;
63	retval = usb_register(&hp49gp_driver);
64	if (retval)
65		goto failed_usb_register;
66	info(DRIVER_DESC " " DRIVER_VERSION);
67	return 0;
68failed_usb_register:
69	usb_serial_deregister(&hp49gp_device);
70failed_usb_serial_register:
71	return retval;
72}
73
74static void __exit hp49gp_exit(void)
75{
76	usb_deregister(&hp49gp_driver);
77	usb_serial_deregister(&hp49gp_device);
78}
79
80module_init(hp49gp_init);
81module_exit(hp49gp_exit);
82
83MODULE_DESCRIPTION(DRIVER_DESC);
84MODULE_VERSION(DRIVER_VERSION);
85MODULE_LICENSE("GPL");
86