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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
fdf93aa3 JK |
2 | /* |
3 | * HID driver for Kensigton Slimblade Trackball | |
4 | * | |
5 | * Copyright (c) 2009 Jiri Kosina | |
6 | */ | |
7 | ||
8 | /* | |
fdf93aa3 JK |
9 | */ |
10 | ||
11 | #include <linux/device.h> | |
12 | #include <linux/input.h> | |
13 | #include <linux/hid.h> | |
14 | #include <linux/module.h> | |
15 | ||
16 | #include "hid-ids.h" | |
17 | ||
18 | #define ks_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c)) | |
19 | ||
20 | static int ks_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
21 | struct hid_field *field, struct hid_usage *usage, | |
22 | unsigned long **bit, int *max) | |
23 | { | |
24 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR) | |
25 | return 0; | |
26 | ||
27 | switch (usage->hid & HID_USAGE) { | |
28 | case 0x01: ks_map_key(BTN_MIDDLE); break; | |
29 | case 0x02: ks_map_key(BTN_SIDE); break; | |
30 | default: | |
31 | return 0; | |
32 | } | |
33 | return 1; | |
34 | } | |
35 | ||
36 | static const struct hid_device_id ks_devices[] = { | |
37 | { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, | |
38 | { } | |
39 | }; | |
40 | MODULE_DEVICE_TABLE(hid, ks_devices); | |
41 | ||
42 | static struct hid_driver ks_driver = { | |
43 | .name = "kensington", | |
44 | .id_table = ks_devices, | |
45 | .input_mapping = ks_input_mapping, | |
46 | }; | |
f425458e | 47 | module_hid_driver(ks_driver); |
fdf93aa3 | 48 | |
fdf93aa3 | 49 | MODULE_LICENSE("GPL"); |