3.2.5.3.7 Sending a Transfer In Request Message

The structure and fields of the TRANSFER_IN_REQUEST message are specified in section 2.2.6.7.

The server sends the TRANSFER_IN_REQUEST message to the client in order to forward an URB to the physical device on the client-side and the URB requests data from the device. The request is stored in the list of pending URB requests until it is completed.