// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some ezkey " special " devices
*
* 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 ) 2006 - 2007 Jiri Kosina
* Copyright ( c ) 2008 Jiri Slaby
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define ez_map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
#define ez_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c))
static int ez_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
return 0 ;
switch (usage->hid & HID_USAGE) {
case 0 x230: ez_map_key(BTN_MOUSE); break ;
case 0 x231: ez_map_rel(REL_WHEEL); break ;
/*
* this keyboard has a scrollwheel implemented in
* totally broken way . We map this usage temporarily
* to HWHEEL and handle it in the event quirk handler
*/
case 0 x232: ez_map_rel(REL_HWHEEL); break ;
default :
return 0 ;
}
return 1 ;
}
static int ez_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0 ;
/* handle the temporary quirky mapping to HWHEEL */
if (usage->type == EV_REL && usage->code == REL_HWHEEL) {
struct input_dev *input = field->hidinput->input;
input_event(input, usage->type, REL_WHEEL, -value);
return 1 ;
}
return 0 ;
}
static const struct hid_device_id ez_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
{ }
};
MODULE_DEVICE_TABLE(hid, ez_devices);
static struct hid_driver ez_driver = {
.name = "ezkey" ,
.id_table = ez_devices,
.input_mapping = ez_input_mapping,
.event = ez_event,
};
module_hid_driver(ez_driver);
MODULE_DESCRIPTION("HID driver for some ezkey \" special\" devices" );
MODULE_LICENSE("GPL" );
Messung V0.5 in Prozent C=94 H=100 G=96
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland