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.
- 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/module.hlinux/i2c.hlinux/regmap.hsound/soc.had193x.h
Detected Declarations
function ad193x_i2c_probe
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
- Immediate include surface: `linux/module.h`, `linux/i2c.h`, `linux/regmap.h`, `sound/soc.h`, `ad193x.h`.
- Detected declarations: `function ad193x_i2c_probe`.
- Atlas domain: Driver Families / sound/soc.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.