linux/drivers/iio/adc/ltc2471.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Driver for Linear Technology LTC2471 and LTC2473 voltage monitors
 * The LTC2473 is identical to the 2471, but reports a differential signal.
 *
 * Copyright (C) 2017 Topic Embedded Products
 * Author: Mike Looijmans <[email protected]>
 */

#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>

enum ltc2471_chips { … };

struct ltc2471_data { … };

/* Reference voltage is 1.25V */
#define LTC2471_VREF …

/* Read two bytes from the I2C bus to obtain the ADC result */
static int ltc2471_get_value(struct i2c_client *client)
{ … }

static int ltc2471_read_raw(struct iio_dev *indio_dev,
			    struct iio_chan_spec const *chan,
			    int *val, int *val2, long info)
{ … }

static const struct iio_chan_spec ltc2471_channel[] = …;

static const struct iio_chan_spec ltc2473_channel[] = …;

static const struct iio_info ltc2471_info = …;

static int ltc2471_i2c_probe(struct i2c_client *client)
{ … }

static const struct i2c_device_id ltc2471_i2c_id[] = …;
MODULE_DEVICE_TABLE(i2c, ltc2471_i2c_id);

static struct i2c_driver ltc2471_i2c_driver = …;

module_i2c_driver(…) …;

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