drivers/hwmon/ltc2947-i2c.c

Source file repositories/reference/linux-study-clean/drivers/hwmon/ltc2947-i2c.c

File Facts

System
Linux kernel
Corpus path
drivers/hwmon/ltc2947-i2c.c
Extension
.c
Size
1080 bytes
Lines
49
Domain
Driver Families
Bucket
drivers/hwmon
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Analog Devices LTC2947 high precision power and energy monitor over I2C
 *
 * Copyright 2019 Analog Devices Inc.
 */
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>

#include "ltc2947.h"

static const struct regmap_config ltc2947_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
};

static int ltc2947_probe(struct i2c_client *i2c)
{
	struct regmap *map;

	map = devm_regmap_init_i2c(i2c, &ltc2947_regmap_config);
	if (IS_ERR(map))
		return PTR_ERR(map);

	return ltc2947_core_probe(map, i2c->name);
}

static const struct i2c_device_id ltc2947_id[] = {
	{ .name = "ltc2947" },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ltc2947_id);

static struct i2c_driver ltc2947_driver = {
	.driver = {
		.name = "ltc2947",
		.of_match_table = ltc2947_of_match,
		.pm = pm_sleep_ptr(&ltc2947_pm_ops),
	},
	.probe = ltc2947_probe,
	.id_table = ltc2947_id,
};
module_i2c_driver(ltc2947_driver);

MODULE_AUTHOR("Nuno Sa <nuno.sa@analog.com>");
MODULE_DESCRIPTION("LTC2947 I2C power and energy monitor driver");
MODULE_LICENSE("GPL");

Annotation

Implementation Notes