mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-22 18:44:44 +08:00
c0b20fd9b6
module_hid_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
|
|
* HID driver for Xin-Mo devices, currently only the Dual Arcade controller.
|
|
* Fixes the negative axis event values (the devices sends -2) to match the
|
|
* logical axis minimum of the HID report descriptor (the report announces
|
|
* -1). It is needed because hid-input discards out of bounds values.
|
|
* (This module is based on "hid-saitek" and "hid-lg".)
|
|
*
|
|
* Copyright (c) 2013 Olivier Scherler
|
|
*/
|
|
|
|
/*
|
|
* 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/device.h>
|
|
#include <linux/hid.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#include "hid-ids.h"
|
|
|
|
/*
|
|
* Fix negative events that are out of bounds.
|
|
*/
|
|
static int xinmo_event(struct hid_device *hdev, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value)
|
|
{
|
|
switch (usage->code) {
|
|
case ABS_X:
|
|
case ABS_Y:
|
|
case ABS_Z:
|
|
case ABS_RX:
|
|
if (value < -1) {
|
|
input_event(field->hidinput->input, usage->type,
|
|
usage->code, -1);
|
|
return 1;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct hid_device_id xinmo_devices[] = {
|
|
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(hid, xinmo_devices);
|
|
|
|
static struct hid_driver xinmo_driver = {
|
|
.name = "xinmo",
|
|
.id_table = xinmo_devices,
|
|
.event = xinmo_event
|
|
};
|
|
|
|
module_hid_driver(xinmo_driver);
|
|
MODULE_LICENSE("GPL");
|