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