mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
f07b3c1da9
It is not a good idea to try to fit all types of applications in the same input report. There are a lot of devices that are needing the quirk HID_MULTI_INPUT but this quirk doesn't match the actual HID description as it is based on the report ID. Given that most devices with MULTI_INPUT I can think of split nicely the devices inputs into application, it is a good thing to split the devices by default based on this assumption. Also make hid-multitouch following this rule, to not have to deal with too many input created. While we are at it, fix some checkpatch complaints about converting 'unsigned' to 'unsigned int'. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/*
|
|
* HID support for Linux
|
|
*
|
|
* Copyright (c) 1999 Andreas Gal
|
|
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
|
|
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
|
|
* Copyright (c) 2007-2008 Oliver Neukum
|
|
* Copyright (c) 2006-2012 Jiri Kosina
|
|
* Copyright (c) 2012 Henrik Rydberg
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*/
|
|
|
|
#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");
|