linux/drivers/counter/counter-chrdev.h
William Breathitt Gray b6c50affda counter: Add character device interface
This patch introduces a character device interface for the Counter
subsystem. Device data is exposed through standard character device read
operations. Device data is gathered when a Counter event is pushed by
the respective Counter device driver. Configuration is handled via ioctl
operations on the respective Counter character device node.

Cc: David Lechner <david@lechnology.com>
Cc: Gwendal Grignou <gwendal@chromium.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/b8b8c64b4065aedff43699ad1f0e2f8d1419c15b.1632884256.git.vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-17 10:53:52 +01:00

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C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Counter character device interface
* Copyright (C) 2020 William Breathitt Gray
*/
#ifndef _COUNTER_CHRDEV_H_
#define _COUNTER_CHRDEV_H_
#include <linux/counter.h>
int counter_chrdev_add(struct counter_device *const counter);
void counter_chrdev_remove(struct counter_device *const counter);
#endif /* _COUNTER_CHRDEV_H_ */