projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 8215d557 HR |
1 | /* |
| 2 | * HID support for Linux | |
| 3 | * | |
| 4 | * Copyright (c) 1999 Andreas Gal | |
| 5 | * Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]> | |
| 6 | * Copyright (c) 2005 Michael Haboustak <[email protected]> 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 | ||
| f07b3c1d BT |
59 | static int hid_generic_probe(struct hid_device *hdev, |
| 60 | const struct hid_device_id *id) | |
| 61 | { | |
| 62 | int ret; | |
| 63 | ||
| 64 | hdev->quirks |= HID_QUIRK_INPUT_PER_APP; | |
| 65 | ||
| 66 | ret = hid_parse(hdev); | |
| 67 | if (ret) | |
| 68 | return ret; | |
| 69 | ||
| 70 | return hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
| 71 | } | |
| 72 | ||
| 8215d557 | 73 | static const struct hid_device_id hid_table[] = { |
| e04a0442 | 74 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, HID_ANY_ID, HID_ANY_ID) }, |
| 8215d557 HR |
75 | { } |
| 76 | }; | |
| 77 | MODULE_DEVICE_TABLE(hid, hid_table); | |
| 78 | ||
| 79 | static struct hid_driver hid_generic = { | |
| 80 | .name = "hid-generic", | |
| 81 | .id_table = hid_table, | |
| e04a0442 | 82 | .match = hid_generic_match, |
| f07b3c1d | 83 | .probe = hid_generic_probe, |
| 8215d557 | 84 | }; |
| f425458e | 85 | module_hid_driver(hid_generic); |
| 8215d557 HR |
86 | |
| 87 | MODULE_AUTHOR("Henrik Rydberg"); | |
| 88 | MODULE_DESCRIPTION("HID generic driver"); | |
| 89 | MODULE_LICENSE("GPL"); |