linux/drivers/w1/slaves/w1_ds2413.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * w1_ds2413.c - w1 family 3a (DS2413) driver
 * based on w1_ds2408.c by Jean-Francois Dagenais <[email protected]>
 *
 * Copyright (c) 2013 Mariusz Bialonczyk <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/slab.h>

#include <linux/w1.h>

#define W1_FAMILY_DS2413 …

#define W1_F3A_RETRIES …
#define W1_F3A_FUNC_PIO_ACCESS_READ …
#define W1_F3A_FUNC_PIO_ACCESS_WRITE …
#define W1_F3A_SUCCESS_CONFIRM_BYTE …
#define W1_F3A_INVALID_PIO_STATE …

static ssize_t state_read(struct file *filp, struct kobject *kobj,
			  struct bin_attribute *bin_attr, char *buf, loff_t off,
			  size_t count)
{ … }

static BIN_ATTR_RO(state, 1);

static ssize_t output_write(struct file *filp, struct kobject *kobj,
			    struct bin_attribute *bin_attr, char *buf,
			    loff_t off, size_t count)
{ … }

static BIN_ATTR(output, 0664, NULL, output_write, 1);

static struct bin_attribute *w1_f3a_bin_attrs[] = …;

static const struct attribute_group w1_f3a_group = …;

static const struct attribute_group *w1_f3a_groups[] = …;

static const struct w1_family_ops w1_f3a_fops = …;

static struct w1_family w1_family_3a = …;
module_w1_family(…);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;