Merge commit 'v2.6.28-rc2' into tracing/urgent
[linux-2.6] / drivers / usb / serial / usb_debug.c
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
20 static struct usb_device_id id_table [] = {
21         { USB_DEVICE(0x0525, 0x127a) },
22         { },
23 };
24 MODULE_DEVICE_TABLE(usb, id_table);
25
26 static 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
34 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
41 static 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
51 static 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
64 static void __exit debug_exit(void)
65 {
66         usb_deregister(&debug_driver);
67         usb_serial_deregister(&debug_device);
68 }
69
70 module_init(debug_init);
71 module_exit(debug_exit);
72 MODULE_LICENSE("GPL");