1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// SPDX-License-Identifier: GPL-2.0
/*
* HID driver for Maltron L90
*
* 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) 2008 Jiri Slaby
* Copyright (c) 2012 David Dillow <dave@thedillows.org>
* Copyright (c) 2006-2013 Jiri Kosina
* Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>
* Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>
* Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com>
* Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com>
* Copyright (c) 2018 William Whistler <wtbw@wtbw.co.uk>
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
/* The original buggy USB descriptor */
static u8 maltron_rdesc_o[] = {
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x09, 0x80, /* Usage (Sys Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x02, /* Report ID (2) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x01, /* Report Count (1) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x83, /* Usage (Sys Wake Up) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x75, 0x05, /* Report Size (5) */
0x81, 0x01, /* Input (Const,Array,Abs) */
0xC0, /* End Collection */
0x05, 0x0C, /* Usage Page (Consumer) */
0x09, 0x01, /* Usage (Consumer Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x03, /* Report ID (3) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (Unassigned) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0xC0, /* End Collection */
0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */
0x09, 0x01, /* Usage (0x01) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x04, /* Report ID (4) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (0x00) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0x75, 0x02, /* Report Size (2) */
0x25, 0x02, /* Logical Maximum (2) */
0x09, 0x90, /* Usage (0x90) */
0xB1, 0x02, /* Feature (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0xB1, 0x01, /* Feature (Const,Array,Abs) */
0x75, 0x01, /* Report Size (1) */
0x25, 0x01, /* Logical Maximum (1) */
0x05, 0x08, /* Usage Page (LEDs) */
0x09, 0x2A, /* Usage (On-Line) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x09, 0x4B, /* Usage (Generic Indicator) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0x95, 0x01, /* Report Count (1) */
0x91, 0x01, /* Output (Const,Array,Abs) */
0xC0 /* End Collection */
};
/* The patched descriptor, allowing media key events to be accepted as valid */
static u8 maltron_rdesc[] = {
0x05, 0x01, /* Usage Page (Generic Desktop Ctrls) */
0x09, 0x80, /* Usage (Sys Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x02, /* Report ID (2) */
0x75, 0x01, /* Report Size (1) */
0x95, 0x01, /* Report Count (1) */
0x15, 0x00, /* Logical Minimum (0) */
0x25, 0x01, /* Logical Maximum (1) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x82, /* Usage (Sys Sleep) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x09, 0x83, /* Usage (Sys Wake Up) */
0x81, 0x06, /* Input (Data,Var,Rel) */
0x75, 0x05, /* Report Size (5) */
0x81, 0x01, /* Input (Const,Array,Abs) */
0xC0, /* End Collection */
0x05, 0x0C, /* Usage Page (Consumer) */
0x09, 0x01, /* Usage (Consumer Control) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x03, /* Report ID (3) */
0x15, 0x00, /* Logical Minimum (0) - changed */
0x26, 0xFF, 0x7F, /* Logical Maximum (32767) - changed */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (Unassigned) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0xC0, /* End Collection */
0x06, 0x7F, 0xFF, /* Usage Page (Vendor Defined 0xFF7F) */
0x09, 0x01, /* Usage (0x01) */
0xA1, 0x01, /* Collection (Application) */
0x85, 0x04, /* Report ID (4) */
0x95, 0x01, /* Report Count (1) */
0x75, 0x10, /* Report Size (16) */
0x19, 0x00, /* Usage Minimum (0x00) */
0x2A, 0xFF, 0x7F, /* Usage Maximum (0x7FFF) */
0x81, 0x00, /* Input (Data,Array,Abs) */
0x75, 0x02, /* Report Size (2) */
0x25, 0x02, /* Logical Maximum (2) */
0x09, 0x90, /* Usage (0x90) */
0xB1, 0x02, /* Feature (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0xB1, 0x01, /* Feature (Const,Array,Abs) */
0x75, 0x01, /* Report Size (1) */
0x25, 0x01, /* Logical Maximum (1) */
0x05, 0x08, /* Usage Page (LEDs) */
0x09, 0x2A, /* Usage (On-Line) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x09, 0x4B, /* Usage (Generic Indicator) */
0x91, 0x02, /* Output (Data,Var,Abs) */
0x75, 0x06, /* Report Size (6) */
0x95, 0x01, /* Report Count (1) */
0x91, 0x01, /* Output (Const,Array,Abs) */
0xC0 /* End Collection */
};
static const __u8 *maltron_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize == sizeof(maltron_rdesc_o) &&
!memcmp(maltron_rdesc_o, rdesc, sizeof(maltron_rdesc_o))) {
hid_info(hdev, "Replacing Maltron L90 keyboard report descriptor\n");
*rsize = sizeof(maltron_rdesc);
return maltron_rdesc;
}
return rdesc;
}
static const struct hid_device_id maltron_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_MALTRON_KB)},
{ }
};
MODULE_DEVICE_TABLE(hid, maltron_devices);
static struct hid_driver maltron_driver = {
.name = "maltron",
.id_table = maltron_devices,
.report_fixup = maltron_report_fixup
};
module_hid_driver(maltron_driver);
MODULE_DESCRIPTION("HID driver for Maltron L90");
MODULE_LICENSE("GPL");
|
