TU-58 support under Unix

[Bill Gunshannon]

Here's a question for someone who has been around long enough to
remember.

Why did none of the available PDP-11 Unixes support the TU-58?
I have looked at Ultrix-11, V7M and BSD 2.11 (didn't try 2.9
but I suspect if it isn't in 2.11 it wasn't in 2.9) and none
of them had support for the TU-58.  Seems to me it would have
been a rather simple device to handle as it ran over a serial
line.

bill