A common issue encountered when utilizing a Windows Communication Device Class (CDC) driver involves the transmission of corrupted or nonsensical data during block mode operation. This manifests as unpredictable and erroneous information being received at the destination, despite the correct configuration and apparent proper functionality of the driver. For example, an embedded system sending sensor readings may transmit seemingly random values instead of the anticipated data stream.
The occurrence of this data corruption is significant due to its impact on the reliability and integrity of communication between Windows-based hosts and peripheral devices. The ability to transfer large blocks of data efficiently and accurately is crucial in many applications, including firmware updates, data acquisition, and high-speed communication. The failure to do so can lead to system instability, data loss, and overall reduced performance. Historically, resolving this required either limiting data transfer to smaller sizes or developing custom driver solutions, both of which have performance or cost implications.
