2 * kmscon - udev input hotplug and evdev handling
4 * Copyright (c) 2011 Ran Benita <ran234@gmail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining
7 * a copy of this software and associated documentation files
8 * (the "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sublicense, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
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27 * This module provides an input object which can deliver all useful input
28 * events to the program.
30 * Its use should be as simple as the following (but also see below):
31 * - Create a new input object.
32 * - Provide a callback function to receive the events.
33 * - Connect the input object to a kmscon_eloop.
34 * - Wake up the input object to begin receiving input events through the
37 * A few things to note:
38 * - This module uses evdev for input, and reads from input devices directly.
39 * This requires root privileges; waking up the input object will fail
41 * - evdev has no inhert notion of "focus" like tty input. In other words,
42 * it will deliver input events whether they are intended for the program
43 * or not. This may also pose a security risk. Therefore, make sure to put
44 * the object to sleep when the program is not active, for example by
45 * reacting to VT changes.
54 struct kmscon_input_device;
55 typedef void (*kmscon_input_cb) (uint16_t type, uint16_t code, int32_t value);
57 int kmscon_input_new(struct kmscon_input **out, kmscon_input_cb cb);
58 void kmscon_input_ref(struct kmscon_input *input);
59 void kmscon_input_unref(struct kmscon_input *input);
61 int kmscon_input_connect_eloop(struct kmscon_input *input, struct kmscon_eloop *loop);
62 void kmscon_input_disconnect_eloop(struct kmscon_input *input);
64 void kmscon_input_sleep(struct kmscon_input *input);
65 void kmscon_input_wake_up(struct kmscon_input *input);
66 bool kmscon_input_is_asleep(struct kmscon_input *input);