[Libusb-win32-devel] USB_BULK_READ()

[amin m. <sir...@gm...>]

hi all,
I use usb_bulk_read() for reading usb device sending data, but if I try to
read once again, PC will be reseted.(in below code, when I change prime
value of k to 2).
if I plug device out then plug in to pc, I can read again. Do you know why?
thanks.

int usb_test(usb_dev_handle *udev, int cnt) {

    time_t start, end;
    double dif=0;

    ofstream ofile;
    ofile.open("result.txt");

    time (&start);
    time (&end);

   //PROBLEM IS HERE
    for(int k = 1; k>0; k--){

        char* rb;
        char* wb;
        int i=0, result;
        rb = new char[4096];
        wb = new char[2048];
        int count = cnt;

        //getting size of reading blocks;
        ifstream ifile;
        ifile.open("test.txt");
        while(!ifile.eof()){
           ifile.get();
            i++;
        }
        ifile.close();

        //reading received data
        result = usb_bulk_read (udev, 2, rb, i, 1000);
        if (result < 0) {
            printf("\nCould not read: %s", usb_strerror());
            return result;
        } else {
            count -= result;
            printf("\nread %d bytes ", result);
        }

        //print read buffer
        for (int j=0; j<result; j++) {
            ofile << rb[j];
        }
        time(&end);
        dif = difftime(end , start);
        delete rb;
        delete wb;
    }
    ofile.close();
    return 0;
}