Получить список USB устройств на С

#include <stdio.h>
#include <wchar.h>
#include <usb.h>
 
int main(){
  struct usb_bus *bus;
  struct usb_device *dev;
  char buf[256];
  wchar_t devVendor[128], devProduct[128];
  int len, i;
  usb_dev_handle *handle = NULL;
  usb_init();
  usb_find_busses();
  usb_find_devices();
  for(bus = usb_get_busses(); bus; bus = bus->next){
    for(dev = bus->devices; dev; dev = dev->next){
      handle = usb_open(dev);
      if(handle == NULL){
        printf("Can not open\n");
        continue;
      }

      len = usb_get_string(handle, dev->descriptor.iManufacturer, 0x0409, buf, sizeof(buf));
      if(len<0){printf("0x%.4X:0x%.4X\n",dev->descriptor.idVendor, dev->descriptor.idProduct); usb_close(handle); continue;}
      len = len/2 - 1;
      for(i=0; i<len; i++)devVendor[i]=buf[i+i+2];
      devVendor[len]=0;
      
      len = usb_get_string(handle, dev->descriptor.iProduct, 0x0409, buf, sizeof(buf));
      if(len<0){printf("0x%.4X:0x%.4X\n",dev->descriptor.idVendor, dev->descriptor.idProduct); usb_close(handle); continue;}
      len = len/2 - 1;
      for(i=0; i<len; i++)devProduct[i]=buf[i+i+2];
      devProduct[len]=0;
      
      printf("0x%.4X:0x%.4X\t[%ls]\t[%ls]\n",dev->descriptor.idVendor, dev->descriptor.idProduct, devVendor, devProduct);
      usb_close(handle);
    }
  }
}