code: def intr_read(self, dev_handle, ep, intf, size, timeout):
          r
          _not_implemented(self.intr_read)
docs: r"""Perform an interrut read.
  
          dev_handle is the value returned by the open_device() method.
          The ep parameter is the bEndpointAddress field whose endpoint
          the data will be received from. intf is the bInterfaceNumber field
          of the interface containing the endpoint. The buff parameter
          is the buffer to receive the data read, the length of the buffer
          tells how many bytes should be read.  The timeout parameter
          specifies a time limit to the operation in miliseconds.
  
          The method returns the number of bytes actually read.