Kernel i2c 设备驱动详细讲解

1、i2c kernel驱动的架构

2、i2c kernel 设备驱动路径

kernel/drivers/input/misc/sensor/device.c

3、kernel i2c 设备驱动都有两个重要的结构体

static const struct i2c_device_id device_id[] = {
	{ "device1" },
	{ "device2" },
	{ "device3" },
	{ }
};

MODULE_DEVICE_TABLE(i2c, device_id);

static struct i2c_driver device_driver = {
	.driver = {
		.name	= "device_driver_name",
		.pm	= &device_pm,
	},
	.class		= I2C_CLASS_HWMON,
	.id_table	= device_id,
	.probe		= device_probe,
	.remove		= device_remove,
};

module_i2c_driver(device_driver);