Subject: Re: umodem
To: Aaron J. Grier <>
From: Jason Thorpe <>
List: current-users
Date: 01/25/2000 13:47:39
On Tue, 25 Jan 2000 13:17:57 -0800 
 "Aaron J. Grier" <> wrote:

 > don't you hook a modem to a communications port, and not the other way
 > around?  IE
 > ucom* at uhub?
 > umodem* at ucom?
 > Does having only 'umodem* at uhub?' make sense?  (IE can you use the
 > modem without having a ucom device associated with it?) Or is this just
 > the weird backwards way USB works?

It's not really backwards if you understand the abstractions...

`umodem' attaches to a specific class of USB device.  `ucom' presents
the TTY layer for that device.  I expect that a forthcoming `userial'
will also have a `ucom' child at some point, as well.

        -- Jason R. Thorpe <>