The necessary alignment, in bytes, that needs to be applied to the transfer start points of the data. This is only observed on OUT endpoints. Zero can be specified to indicate there are no class side requirements for alignment. The alignment for OUT endpoints is which ever is greater of this field or the USB hardware requirements.

This indicates the requested size of the endpoint buffer and must be at least as large as iReadSize.

Flags to indicate how the endpoint should function. None currently defined, but could be used to allow support for direct read.

TEndpointPairInfo represents pairing information for isochronous endpoints. Should be zero in other cases. If this specifies paired endpoints then iExtra (in the base class TUsbcEndpointInfo ) also needs to be set to the class specific size for this endpoint descriptor (This is here only for future use).

This is the amount of data that the LDD reads from the bus before it sets up another read and is normally intended to read many packets.

Reserved for future use.