In message <200201250222.g0P2MjS07813@coll.must-have-coffee.gen.nz>,
Lloyd Parkes writes:


>I have a problem at the other end of the technology spectrum. A number
>of serial devices support synchronous communications as well as asynch.
>I don't want to have to guess which tty* device supports HDLC.

Yep, I've even got some. So does gwoods, for that matter.