sound/soc/codecs/adau1977-i2c.c
Source file repositories/reference/linux-study-clean/sound/soc/codecs/adau1977-i2c.c
File Facts
- System
- Linux kernel
- Corpus path
sound/soc/codecs/adau1977-i2c.c- Extension
.c- Size
- 1224 bytes
- Lines
- 50
- 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/i2c.hlinux/mod_devicetable.hlinux/module.hlinux/regmap.hsound/soc.hadau1977.h
Detected Declarations
function adau1977_i2c_probe
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0-only
/*
* ADAU1977/ADAU1978/ADAU1979 driver
*
* Copyright 2014 Analog Devices Inc.
* Author: Lars-Peter Clausen <lars@metafoo.de>
*/
#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "adau1977.h"
static int adau1977_i2c_probe(struct i2c_client *client)
{
struct regmap_config config;
config = adau1977_regmap_config;
config.val_bits = 8;
config.reg_bits = 8;
return adau1977_probe(&client->dev,
devm_regmap_init_i2c(client, &config),
(uintptr_t)i2c_get_match_data(client), NULL);
}
static const struct i2c_device_id adau1977_i2c_ids[] = {
{ .name = "adau1977", .driver_data = ADAU1977 },
{ .name = "adau1978", .driver_data = ADAU1978 },
{ .name = "adau1979", .driver_data = ADAU1978 },
{ }
};
MODULE_DEVICE_TABLE(i2c, adau1977_i2c_ids);
static struct i2c_driver adau1977_i2c_driver = {
.driver = {
.name = "adau1977",
},
.probe = adau1977_i2c_probe,
.id_table = adau1977_i2c_ids,
};
module_i2c_driver(adau1977_i2c_driver);
MODULE_DESCRIPTION("ASoC ADAU1977/ADAU1978/ADAU1979 driver");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_LICENSE("GPL");
Annotation
- Immediate include surface: `linux/i2c.h`, `linux/mod_devicetable.h`, `linux/module.h`, `linux/regmap.h`, `sound/soc.h`, `adau1977.h`.
- Detected declarations: `function adau1977_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.