Perform a Level 0 SSC Discovery.

Request an (extended) ComID.

Validate a ComID.

Initiate a new control session with a ComID.

Prepare a new method call.

Low-level communication used to send/receive packets to a TPer or SP.

Reset the state of the synchronous protocol stack.

Opal Feature Set: PSID.

Enterprise SSC.

Increased to match that one of the highest standard we support.

Table 168: "Communications Initial Assumptions".

Table 241 - "Session Manager Method UIDs".

NOTE: This is almost io.ReadWriter, but not quite - I couldn't figure out a good interface use that wouldn't result in a lot of extra copying.