sound/soc/codecs/ad193x-i2c.c

Source file repositories/reference/linux-study-clean/sound/soc/codecs/ad193x-i2c.c

File Facts

System
Linux kernel
Corpus path
sound/soc/codecs/ad193x-i2c.c
Extension
.c
Size
1036 bytes
Lines
48
Domain
Driver Families
Bucket
sound/soc
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-only
/*
 * AD1936/AD1937 audio driver
 *
 * Copyright 2014 Analog Devices Inc.
 */

#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/regmap.h>

#include <sound/soc.h>

#include "ad193x.h"

static const struct i2c_device_id ad193x_id[] = {
	{ .name = "ad1936", .driver_data = AD193X },
	{ .name = "ad1937", .driver_data = AD193X },
	{ }
};
MODULE_DEVICE_TABLE(i2c, ad193x_id);

static int ad193x_i2c_probe(struct i2c_client *client)
{
	struct regmap_config config;

	config = ad193x_regmap_config;
	config.val_bits = 8;
	config.reg_bits = 8;

	return ad193x_probe(&client->dev,
			    devm_regmap_init_i2c(client, &config),
			    (uintptr_t)i2c_get_match_data(client));
}

static struct i2c_driver ad193x_i2c_driver = {
	.driver = {
		.name = "ad193x",
	},
	.probe = ad193x_i2c_probe,
	.id_table = ad193x_id,
};
module_i2c_driver(ad193x_i2c_driver);

MODULE_DESCRIPTION("ASoC AD1936/AD1937 audio CODEC driver");
MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
MODULE_LICENSE("GPL");

Annotation

Implementation Notes