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1/*
2 * Copyright (c) 1999-2001 Vojtech Pavlik
3 */
4
5/*
6 * Input driver event debug module - dumps all events into syslog
7 */
8
9/*
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 * Should you need to contact me, the author, you can do so either by
25 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
26 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
27 */
28
29#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
30
31#include <linux/slab.h>
32#include <linux/module.h>
33#include <linux/input.h>
34#include <linux/init.h>
35#include <linux/device.h>
36
37MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
38MODULE_DESCRIPTION("Input driver event debug module");
39MODULE_LICENSE("GPL");
40
41static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
42{
43 printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
44 dev_name(&handle->dev->dev), type, code, value);
45}
46
47static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
48 const struct input_device_id *id)
49{
50 struct input_handle *handle;
51 int error;
52
53 handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
54 if (!handle)
55 return -ENOMEM;
56
57 handle->dev = dev;
58 handle->handler = handler;
59 handle->name = "evbug";
60
61 error = input_register_handle(handle);
62 if (error)
63 goto err_free_handle;
64
65 error = input_open_device(handle);
66 if (error)
67 goto err_unregister_handle;
68
69 printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
70 dev_name(&dev->dev),
71 dev->name ?: "unknown",
72 dev->phys ?: "unknown");
73
74 return 0;
75
76 err_unregister_handle:
77 input_unregister_handle(handle);
78 err_free_handle:
79 kfree(handle);
80 return error;
81}
82
83static void evbug_disconnect(struct input_handle *handle)
84{
85 printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
86 dev_name(&handle->dev->dev));
87
88 input_close_device(handle);
89 input_unregister_handle(handle);
90 kfree(handle);
91}
92
93static const struct input_device_id evbug_ids[] = {
94 { .driver_info = 1 }, /* Matches all devices */
95 { }, /* Terminating zero entry */
96};
97
98MODULE_DEVICE_TABLE(input, evbug_ids);
99
100static struct input_handler evbug_handler = {
101 .event = evbug_event,
102 .connect = evbug_connect,
103 .disconnect = evbug_disconnect,
104 .name = "evbug",
105 .id_table = evbug_ids,
106};
107
108static int __init evbug_init(void)
109{
110 return input_register_handler(&evbug_handler);
111}
112
113static void __exit evbug_exit(void)
114{
115 input_unregister_handler(&evbug_handler);
116}
117
118module_init(evbug_init);
119module_exit(evbug_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 1999-2001 Vojtech Pavlik
4 */
5
6/*
7 * Input driver event debug module - dumps all events into syslog
8 */
9
10/*
11 */
12
13#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
14
15#include <linux/slab.h>
16#include <linux/module.h>
17#include <linux/input.h>
18#include <linux/init.h>
19#include <linux/device.h>
20
21MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
22MODULE_DESCRIPTION("Input driver event debug module");
23MODULE_LICENSE("GPL");
24
25static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
26{
27 printk(KERN_DEBUG pr_fmt("Event. Dev: %s, Type: %d, Code: %d, Value: %d\n"),
28 dev_name(&handle->dev->dev), type, code, value);
29}
30
31static int evbug_connect(struct input_handler *handler, struct input_dev *dev,
32 const struct input_device_id *id)
33{
34 struct input_handle *handle;
35 int error;
36
37 handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
38 if (!handle)
39 return -ENOMEM;
40
41 handle->dev = dev;
42 handle->handler = handler;
43 handle->name = "evbug";
44
45 error = input_register_handle(handle);
46 if (error)
47 goto err_free_handle;
48
49 error = input_open_device(handle);
50 if (error)
51 goto err_unregister_handle;
52
53 printk(KERN_DEBUG pr_fmt("Connected device: %s (%s at %s)\n"),
54 dev_name(&dev->dev),
55 dev->name ?: "unknown",
56 dev->phys ?: "unknown");
57
58 return 0;
59
60 err_unregister_handle:
61 input_unregister_handle(handle);
62 err_free_handle:
63 kfree(handle);
64 return error;
65}
66
67static void evbug_disconnect(struct input_handle *handle)
68{
69 printk(KERN_DEBUG pr_fmt("Disconnected device: %s\n"),
70 dev_name(&handle->dev->dev));
71
72 input_close_device(handle);
73 input_unregister_handle(handle);
74 kfree(handle);
75}
76
77static const struct input_device_id evbug_ids[] = {
78 { .driver_info = 1 }, /* Matches all devices */
79 { }, /* Terminating zero entry */
80};
81
82MODULE_DEVICE_TABLE(input, evbug_ids);
83
84static struct input_handler evbug_handler = {
85 .event = evbug_event,
86 .connect = evbug_connect,
87 .disconnect = evbug_disconnect,
88 .name = "evbug",
89 .id_table = evbug_ids,
90};
91
92static int __init evbug_init(void)
93{
94 return input_register_handler(&evbug_handler);
95}
96
97static void __exit evbug_exit(void)
98{
99 input_unregister_handler(&evbug_handler);
100}
101
102module_init(evbug_init);
103module_exit(evbug_exit);