cb4493d8b8
When tap or swipe in a dedicated region, tp driver will notify the subsystem/driver who has registered. And this feature is not enabled by default; write the sysfs node to enable it by demand. Change-Id: Ie6312e8a0680b0abb9fed9a647bc9cee36985286 Signed-off-by: Rick Huang <rhuang@codeaurora.org> Signed-off-by: Fei Mao <feim1@codeaurora.org>
35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2019, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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*/
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#include <linux/export.h>
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#include <linux/notifier.h>
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#include <linux/input/touch_event_notify.h>
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static BLOCKING_NOTIFIER_HEAD(touch_notifier_list);
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int touch_event_register_notifier(struct notifier_block *nb)
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{
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return blocking_notifier_chain_register(&touch_notifier_list, nb);
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}
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EXPORT_SYMBOL(touch_event_register_notifier);
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int touch_event_unregister_notifier(struct notifier_block *nb)
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{
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return blocking_notifier_chain_unregister(&touch_notifier_list, nb);
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}
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EXPORT_SYMBOL(touch_event_unregister_notifier);
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void touch_event_call_notifier(unsigned long action, void *data)
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{
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blocking_notifier_call_chain(&touch_notifier_list, action, data);
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}
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EXPORT_SYMBOL(touch_event_call_notifier);
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