drivers/iio/accel/kxsd9-i2c.c

Source file repositories/reference/linux-study-clean/drivers/iio/accel/kxsd9-i2c.c

File Facts

System
Linux kernel
Corpus path
drivers/iio/accel/kxsd9-i2c.c
Extension
.c
Size
1445 bytes
Lines
66
Domain
Driver Families
Bucket
drivers/iio
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
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/regmap.h>

#include "kxsd9.h"

static int kxsd9_i2c_probe(struct i2c_client *i2c)
{
	static const struct regmap_config config = {
		.reg_bits = 8,
		.val_bits = 8,
		.max_register = 0x0e,
	};
	struct regmap *regmap;

	regmap = devm_regmap_init_i2c(i2c, &config);
	if (IS_ERR(regmap)) {
		dev_err(&i2c->dev, "Failed to register i2c regmap: %pe\n",
			regmap);
		return PTR_ERR(regmap);
	}

	return kxsd9_common_probe(&i2c->dev,
				  regmap,
				  i2c->name);
}

static void kxsd9_i2c_remove(struct i2c_client *client)
{
	kxsd9_common_remove(&client->dev);
}

static const struct of_device_id kxsd9_of_match[] = {
	{ .compatible = "kionix,kxsd9", },
	{ }
};
MODULE_DEVICE_TABLE(of, kxsd9_of_match);

static const struct i2c_device_id kxsd9_i2c_id[] = {
	{ "kxsd9" },
	{ }
};
MODULE_DEVICE_TABLE(i2c, kxsd9_i2c_id);

static struct i2c_driver kxsd9_i2c_driver = {
	.driver = {
		.name	= "kxsd9",
		.of_match_table = kxsd9_of_match,
		.pm = pm_ptr(&kxsd9_dev_pm_ops),
	},
	.probe		= kxsd9_i2c_probe,
	.remove		= kxsd9_i2c_remove,
	.id_table	= kxsd9_i2c_id,
};
module_i2c_driver(kxsd9_i2c_driver);

MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("KXSD9 accelerometer I2C interface");
MODULE_IMPORT_NS("IIO_KXSD9");

Annotation

Implementation Notes