// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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
*/
/*
*/
#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_DESCRIPTION("HID driver for Xin-Mo devices" );
MODULE_LICENSE("GPL" );
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