Lib usb如何从端口读取字符

发布于 2024-12-06 08:16:58 字数 578 浏览 4 评论 0原文

我想编写一个从 USB 设备读取数据的应用程序，并且正在寻找一个可以使工作变得更轻松的库。我找到了一个名为 lib-usb 的库。不幸的是，它几乎没有文档。这是我尝试过的：

#include <stdio.h>
#include <stdlib.h>
#include <usb.h>

     int main(){
        struct usb_device dev;
        struct usb_device *device;
        usb_dev_handle *handle;
        struct usb_bus bus;

usb_init();
            usb_find_busses();
            int a=usb_find_devices();
        bus=usb_get_buses();
        handle=usb_open(device);

            return 0;
        }

但我不知道如何选择我想要读取的端口。我想将读取的数据保存为字符串。任何建议表示赞赏。

原文

I want to write an application that reads data from the USB device and was looking for a library that can make the job easier. I found a library called lib-usb. Unfortunately, it has almost no documentation. Here is what I have tried:

#include <stdio.h>
#include <stdlib.h>
#include <usb.h>

     int main(){
        struct usb_device dev;
        struct usb_device *device;
        usb_dev_handle *handle;
        struct usb_bus bus;

usb_init();
            usb_find_busses();
            int a=usb_find_devices();
        bus=usb_get_buses();
        handle=usb_open(device);

            return 0;
        }

But I can't figure out how to select a port that I want to read from. I would like to save read data as a string. Any advice is appreciated.

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