linux usb驱动测试

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

int main() {
    libusb_device **devs;
    libusb_device_handle *dev_handle;
    ssize_t cnt;

    // 初始化libusb
    if (libusb_init(NULL) < 0) {
        perror("libusb_init");
        return 1;
    }

    // 获取设备列表
    cnt = libusb_get_device_list(NULL, &devs);
    if (cnt < 0) {
        perror("libusb_get_device_list");
        libusb_exit(NULL);
        return 1;
    }

    // 遍历设备并打开第一个USB设备
    for (ssize_t i = 0; i < cnt; i++) {
        dev_handle = libusb_open_device_with_vid_pid(NULL, VENDOR_ID, PRODUCT_ID);
        if (dev_handle != NULL) {
            break;
        }
    }

    if (dev_handle == NULL) {
        fprintf(stderr, "Could not open USB device\n");
        libusb_free_device_list(devs, 1);
        libusb_exit(NULL);
        return 1;
    }

    // 进行设备通信测试（例如读取数据）
    unsigned char data[64];
    int transferred;
    int r = libusb_bulk_transfer(dev_handle, LIBUSB_ENDPOINT_IN, data, sizeof(data), &transferred, 0);
    if (r == 0 && transferred == sizeof(data)) {
        printf("Data received successfully\n");
    } else {
        perror("libusb_bulk_transfer");
    }

    // 关闭设备并清理
    libusb_close(dev_handle);
    libusb_free_device_list(devs, 1);
    libusb_exit(NULL);

    return 0;
}