43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
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#include <unistd.h>
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#include <stdio.h>
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#include <libusb-1.0/libusb.h>
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static void print_devs(libusb_device **devs)
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{
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libusb_device *dev;
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int i = 0;
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while ((dev = devs[i++]) != NULL) {
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struct libusb_device_descriptor desc;
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int r = libusb_get_device_descriptor(dev, &desc);
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if (r < 0) {
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fprintf(stderr, "failed to get device descriptor");
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return;
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}
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printf("%04x:%04x (bus %d, device %d)\n",
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desc.idVendor, desc.idProduct,
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libusb_get_bus_number(dev), libusb_get_device_address(dev));
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}
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}
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int main()
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{
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int r;
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ssize_t cnt;
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libusb_device **devs; //devices
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r=libusb_init(NULL); //init 初始化libusb
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if(r<0) {
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printf("failed to init libusb\n");
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return 1;
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}
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cnt = libusb_get_device_list(NULL,&devs); //获取设备列表
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if (cnt < 0) {
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printf("failed to get device list\n");
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return 1;
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}
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print_devs(devs);
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return 0;
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}
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