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8215d557 HR |
1 | /* |
2 | * HID support for Linux | |
3 | * | |
4 | * Copyright (c) 1999 Andreas Gal | |
5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | |
6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
7 | * Copyright (c) 2007-2008 Oliver Neukum | |
8 | * Copyright (c) 2006-2012 Jiri Kosina | |
9 | * Copyright (c) 2012 Henrik Rydberg | |
10 | */ | |
11 | ||
12 | /* | |
13 | * This program is free software; you can redistribute it and/or modify it | |
14 | * under the terms of the GNU General Public License as published by the Free | |
15 | * Software Foundation; either version 2 of the License, or (at your option) | |
16 | * any later version. | |
17 | */ | |
18 | ||
19 | #include <linux/module.h> | |
20 | #include <linux/slab.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <asm/unaligned.h> | |
23 | #include <asm/byteorder.h> | |
24 | ||
25 | #include <linux/hid.h> | |
26 | ||
e04a0442 BT |
27 | static struct hid_driver hid_generic; |
28 | ||
e04a0442 BT |
29 | static int __check_hid_generic(struct device_driver *drv, void *data) |
30 | { | |
31 | struct hid_driver *hdrv = to_hid_driver(drv); | |
32 | struct hid_device *hdev = data; | |
33 | ||
34 | if (hdrv == &hid_generic) | |
35 | return 0; | |
36 | ||
37 | return hid_match_device(hdev, hdrv) != NULL; | |
38 | } | |
39 | ||
40 | static bool hid_generic_match(struct hid_device *hdev, | |
41 | bool ignore_special_driver) | |
42 | { | |
43 | if (ignore_special_driver) | |
44 | return true; | |
45 | ||
46 | if (hdev->quirks & HID_QUIRK_HAVE_SPECIAL_DRIVER) | |
47 | return false; | |
48 | ||
49 | /* | |
50 | * If any other driver wants the device, leave the device to this other | |
51 | * driver. | |
52 | */ | |
53 | if (bus_for_each_drv(&hid_bus_type, NULL, hdev, __check_hid_generic)) | |
54 | return false; | |
55 | ||
56 | return true; | |
57 | } | |
58 | ||
8215d557 | 59 | static const struct hid_device_id hid_table[] = { |
e04a0442 | 60 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, HID_ANY_ID, HID_ANY_ID) }, |
8215d557 HR |
61 | { } |
62 | }; | |
63 | MODULE_DEVICE_TABLE(hid, hid_table); | |
64 | ||
65 | static struct hid_driver hid_generic = { | |
66 | .name = "hid-generic", | |
67 | .id_table = hid_table, | |
e04a0442 | 68 | .match = hid_generic_match, |
8215d557 | 69 | }; |
f425458e | 70 | module_hid_driver(hid_generic); |
8215d557 HR |
71 | |
72 | MODULE_AUTHOR("Henrik Rydberg"); | |
73 | MODULE_DESCRIPTION("HID generic driver"); | |
74 | MODULE_LICENSE("GPL"); |