Synchronous Bus Requests (Windows Embedded CE 6.0)
1/6/2010
For some Secure Digital (SD) commands, such as SET_BLOCKLEN, there is no compelling performance reason to use asynchronous transfers. For these situations, synchronous bus requests are provided. These bus requests block the client driver until the bus request has been completed. The SDSynchronousBusRequest function is used to make these requests.
The pResponse parameter is used to obtain the response to the command from the card. This response will contain error status and for some commands some data as requested from the card.