human
Solve the following python programming problem given the following code:
def _IOR(type, nr, struct) : 
    request = _IOC (_IOC_READ, ord (type), request, ctypes.sizeof (struct)) 
    def f(fileno) : 
        buffer = struct () 
        if (c.ioctl (fileno, request, ctypes.byref (buffer)) < 0) : 
            err = ctypes.c_int.in_dll (c, 'errno').value 
            raise OSError (err, errno.errorcode [err]) 
return buffer 
return f 

    
    

    Fix the buggy line: request = _IOC (_IOC_READ, ord (type), request, ctypes.sizeof (struct))
assistant
#Here is Python program to fix the buggy line: request = _IOC (_IOC_READ, ord (type), request, ctypes.

request = _IOC (_IOC_READ, ord (type), nr, ctypes.sizeof (struct))