kernel_optimize_test/drivers/hid/hid-xinmo.c
Peter Stein 9257821c5a HID: xinmo: fix for out of range for THT 2P arcade controller.
There is a new clone of the XIN MO arcade controller which has same issue with
out of range like the original.  This fix will solve the issue where 2
directions on the joystick are not recognized by the new THT 2P arcade
controller with device ID 0x75e1.  In details the new device ID is added the
hid-id list and the hid-xinmo source code.

Signed-off-by: Peter Stein <peter@stuntstein.dk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-24 15:43:03 +01:00

63 lines
1.6 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) },
{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_THT_2P_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");