linux/drivers/misc/apds9802als.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * apds9802als.c - apds9802  ALS Driver
 *
 * Copyright (C) 2009 Intel Corp
 *
 *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
#include <linux/pm_runtime.h>

#define ALS_MIN_RANGE_VAL …
#define ALS_MAX_RANGE_VAL …
#define POWER_STA_ENABLE …
#define POWER_STA_DISABLE …

#define DRIVER_NAME …

struct als_data { … };

static ssize_t als_sensing_range_show(struct device *dev,
			struct device_attribute *attr,  char *buf)
{ … }

static int als_wait_for_data_ready(struct device *dev)
{ … }

static ssize_t als_lux0_input_data_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{ … }

static ssize_t als_sensing_range_store(struct device *dev,
		struct device_attribute *attr, const  char *buf, size_t count)
{ … }

static int als_set_power_state(struct i2c_client *client, bool on_off)
{ … }

static DEVICE_ATTR(lux0_sensor_range, S_IRUGO | S_IWUSR,
	als_sensing_range_show, als_sensing_range_store);
static DEVICE_ATTR(lux0_input, S_IRUGO, als_lux0_input_data_show, NULL);

static struct attribute *mid_att_als[] = …;

static const struct attribute_group m_als_gr = …;

static int als_set_default_config(struct i2c_client *client)
{ … }

static int apds9802als_probe(struct i2c_client *client)
{ … }

static void apds9802als_remove(struct i2c_client *client)
{ … }

#ifdef CONFIG_PM

static int apds9802als_suspend(struct device *dev)
{ … }

static int apds9802als_resume(struct device *dev)
{ … }

static UNIVERSAL_DEV_PM_OPS(apds9802als_pm_ops, apds9802als_suspend,
	apds9802als_resume, NULL);

#define APDS9802ALS_PM_OPS …

#else	/* CONFIG_PM */
#define APDS9802ALS_PM_OPS …
#endif	/* CONFIG_PM */

static const struct i2c_device_id apds9802als_id[] = …;

MODULE_DEVICE_TABLE(i2c, apds9802als_id);

static struct i2c_driver apds9802als_driver = …;

module_i2c_driver(…) …;

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