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86 lines
1.9 KiB
86 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* HID support for Linux |
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* |
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* Copyright (c) 1999 Andreas Gal |
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* Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]> |
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* Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc |
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* Copyright (c) 2007-2008 Oliver Neukum |
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* Copyright (c) 2006-2012 Jiri Kosina |
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* Copyright (c) 2012 Henrik Rydberg |
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*/ |
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/* |
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*/ |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <linux/kernel.h> |
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#include <asm/unaligned.h> |
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#include <asm/byteorder.h> |
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#include <linux/hid.h> |
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static struct hid_driver hid_generic; |
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static int __check_hid_generic(struct device_driver *drv, void *data) |
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{ |
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struct hid_driver *hdrv = to_hid_driver(drv); |
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struct hid_device *hdev = data; |
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if (hdrv == &hid_generic) |
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return 0; |
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return hid_match_device(hdev, hdrv) != NULL; |
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} |
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static bool hid_generic_match(struct hid_device *hdev, |
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bool ignore_special_driver) |
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{ |
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if (ignore_special_driver) |
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return true; |
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if (hdev->quirks & HID_QUIRK_HAVE_SPECIAL_DRIVER) |
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return false; |
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/* |
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* If any other driver wants the device, leave the device to this other |
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* driver. |
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*/ |
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if (bus_for_each_drv(&hid_bus_type, NULL, hdev, __check_hid_generic)) |
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return false; |
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return true; |
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} |
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static int hid_generic_probe(struct hid_device *hdev, |
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const struct hid_device_id *id) |
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{ |
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int ret; |
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hdev->quirks |= HID_QUIRK_INPUT_PER_APP; |
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ret = hid_parse(hdev); |
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if (ret) |
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return ret; |
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return hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
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} |
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static const struct hid_device_id hid_table[] = { |
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{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, HID_ANY_ID, HID_ANY_ID) }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(hid, hid_table); |
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static struct hid_driver hid_generic = { |
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.name = "hid-generic", |
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.id_table = hid_table, |
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.match = hid_generic_match, |
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.probe = hid_generic_probe, |
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}; |
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module_hid_driver(hid_generic); |
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MODULE_AUTHOR("Henrik Rydberg"); |
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MODULE_DESCRIPTION("HID generic driver"); |
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MODULE_LICENSE("GPL");
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