2 * HID driver for some ezkey "special" devices
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006-2007 Jiri Kosina
8 * Copyright (c) 2007 Paul Walmsley
9 * Copyright (c) 2008 Jiri Slaby
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the Free
15 * Software Foundation; either version 2 of the License, or (at your option)
19 #include <linux/device.h>
20 #include <linux/input.h>
21 #include <linux/hid.h>
22 #include <linux/module.h>
26 #define ez_map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c))
27 #define ez_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c))
29 static int ez_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
30 struct hid_field
*field
, struct hid_usage
*usage
,
31 unsigned long **bit
, int *max
)
33 if ((usage
->hid
& HID_USAGE_PAGE
) != HID_UP_CONSUMER
)
36 switch (usage
->hid
& HID_USAGE
) {
37 case 0x230: ez_map_key(BTN_MOUSE
); break;
38 case 0x231: ez_map_rel(REL_WHEEL
); break;
40 * this keyboard has a scrollwheel implemented in
41 * totally broken way. We map this usage temporarily
42 * to HWHEEL and handle it in the event quirk handler
44 case 0x232: ez_map_rel(REL_HWHEEL
); break;
51 static int ez_event(struct hid_device
*hdev
, struct hid_field
*field
,
52 struct hid_usage
*usage
, __s32 value
)
54 if (!(hdev
->claimed
& HID_CLAIMED_INPUT
) || !field
->hidinput
||
58 /* handle the temporary quirky mapping to HWHEEL */
59 if (usage
->type
== EV_REL
&& usage
->code
== REL_HWHEEL
) {
60 struct input_dev
*input
= field
->hidinput
->input
;
61 input_event(input
, usage
->type
, REL_WHEEL
, -value
);
68 static const struct hid_device_id ez_devices
[] = {
69 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY
, USB_DEVICE_ID_BTC_8193
) },
72 MODULE_DEVICE_TABLE(hid
, ez_devices
);
74 static struct hid_driver ez_driver
= {
76 .id_table
= ez_devices
,
77 .input_mapping
= ez_input_mapping
,
81 static int __init
ez_init(void)
83 return hid_register_driver(&ez_driver
);
86 static void __exit
ez_exit(void)
88 hid_unregister_driver(&ez_driver
);
93 MODULE_LICENSE("GPL");
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