Usb Isochronous Transfer. The first one preserves usb 30s superspeed transfer mode and is labeled usb 31 gen 1 and the second version introduces a new superspeed transfer mode under the label of usb 31 gen 2. Find the isochronous pipe in the active setting.
An isochronous pipe sends a new data packet in every frame regardless of the success or failure of the last packet. A single isochronous transfer is pointless you may as well use a bulk pipe for that. Isochronous transfers are used for transmitting real time information such as audio and video data and must be sent at a constant rate.
Yes there can be various causes of data loss and data corruption not just particularly in isochronous transmission but in any usb transfer.
Isochronous transfer mode transfers usb data packets at a constant minimum rate of speed necessary for the jitter free transmission of sound or video. Alternating transfers carry 48 and 40 bytes 6 and 5 stereo samples so that the average rate works out as 441 bytes per transfer. You get no choice about the error handling but your bandwidth is reserved on the bus. High speed isochronous transfers have an extended control system to allow up to 3 isochronous transactions per microframe allowing a data rate of up to 192 mbs.