如何在Linux上以编程方式获取USB供应商和产品信息？

#include <stdio.h>
#include <libusb-1.0/libusb.h>

int main() {
    libusb_context *ctx = NULL;
    libusb_device **devs = NULL;
    int r;
    ssize_t cnt;

    r = libusb_init(&ctx);
    if (r < 0) {
        printf("Failed to initialize libusb\n");
        return 1;
    }

    cnt = libusb_get_device_list(ctx, &devs);
    if (cnt < 0) {
        printf("Failed to get USB device list\n");
        libusb_exit(ctx);
        return 1;
    }

    for (ssize_t i = 0; i < cnt; i++) {
        libusb_device *dev = devs[i];
        struct libusb_device_descriptor desc;

        r = libusb_get_device_descriptor(dev, &desc);
        if (r < 0) {
            printf("Failed to get device descriptor\n");
            continue;
        }

        printf("Vendor ID: 0x%04x\n", desc.idVendor);
        printf("Product ID: 0x%04x\n", desc.idProduct);
    }

    libusb_free_device_list(devs, 1);
    libusb_exit(ctx);

    return 0;
}

gcc -o usb_info usb_info.c -lusb-1.0