linux/drivers/accessibility/speakup/fakekey.c

// SPDX-License-Identifier: GPL-2.0+
/* fakekey.c
 * Functions for simulating key presses.
 *
 * Copyright (C) 2010 the Speakup Team
 */
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/preempt.h>
#include <linux/percpu.h>
#include <linux/input.h>

#include "speakup.h"

#define PRESSED …
#define RELEASED …

static DEFINE_PER_CPU(int, reporting_keystroke);

static struct input_dev *virt_keyboard;

int speakup_add_virtual_keyboard(void)
{ … }

void speakup_remove_virtual_keyboard(void)
{ … }

/*
 * Send a simulated down-arrow to the application.
 */
void speakup_fake_down_arrow(void)
{ … }

/*
 * Are we handling a simulated key press on the current CPU?
 * Returns a boolean.
 */
bool speakup_fake_key_pressed(void)
{ … }