fusb302驱动代码

以下是一个简单的基于Linux内核的fusb302驱动代码示例：

#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>

#define FUSB302_I2C_ADDR    0x22

struct fusb302 {
    struct i2c_client *client;
};

static int fusb302_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
    struct device *dev = &client->dev;
    struct fusb302 *fusb;
    int ret;

    fusb = devm_kzalloc(dev, sizeof(*fusb), GFP_KERNEL);
    if (!fusb)
        return -ENOMEM;

    fusb->client = client;
    i2c_set_clientdata(client, fusb);

    /* Perform device initialization here */

    return 0;
}

static int fusb302_remove(struct i2c_client *client)
{
    /* Perform device cleanup here */

    return 0;
}

static const struct of_device_id fusb302_of_match[] = {
    { .compatible = "fairchild,fusb302", },
    {},
};
MODULE_DEVICE_TABLE(of, fusb302_of_match);

static const struct i2c_device_id fusb302_id[] = {
    { "fusb302", 0 },
    {},
};
MODULE_DEVICE_TABLE(i2c, fusb302_id);

static struct i2c_driver fusb302_driver = {
    .probe = fusb302_probe,
    .remove = fusb302_remove,
    .id_table = fusb302_id,
    .driver = {
        .name = "fusb302",
        .of_match_table = fusb302_of_match,
    },
};

module_i2c_driver(fusb302_driver);

MODULE_AUTHOR("Your Name");
MODULE_DESCRIPTION("fusb302 Driver");
MODULE_LICENSE("GPL");

这是一个基本的驱动程序，用于控制连接到I2C总线上的fusb302芯片。在probe函数中，可以执行设备的初始化，并在remove函数中执行清理操作。此驱动程序还包括设备树匹配和I2C ID匹配。请注意，此代码示例不一定适用于所有情况，因为驱动程序的实现可能因硬件和特定的应用程序而异。