Subject: Re: Working USB<->serial spotted in the wild!
To: None <>
From: Bernd Ernesti <>
List: current-users
Date: 12/09/2001 21:34:38
On Fri, Dec 07, 2001 at 08:47:00AM -0800, Wolfgang Rupprecht wrote:
> (Peter Seebach) writes:
> > The local Micro Center carries (carried?) a USB/Serial converter made by
> > QVS, under the model number "USC-1000", or "USC-1009F", depending on which
> > label you believe.  It looks as though the "1009F" means it comes with a 25-9
> > pin adapter.
> One thing you may want to also try is ppp over this adaptor.  I spent
> quite a while trying to get ppp over a utty configured only to find
> out that the problems went away when I switched to a real tty/com
> port.
>     model: DSB-S25 
>     umct0: MCT Corporation. USB-232 Interfact Controller, rev 1.00/1.02, addr 4

I have the following one:

umct0 at uhub1 port 1
umct0: USB-RS232 Interface Converter USB Ver1.1 Device, rev 1.10/1.02, addr 5
ucom0 at umct0

port 1 addr 5: full speed, power 100 mA, config 1, USB Ver1.1 Device(0x0230), USB-RS232 Interface Converter(0x0711), rev 1.02

usbdevs says that this is a Sitecom USB-232 Products.

But I can't talk to it. I only get a device timeout.

Neither minicom, nor cu nor tip works with it.

cu needs a long time to print the Connected. line, but doesn't work.
Minicom just says:
minicom: cannot open /dev/ttyU0: Operation not permitted
and then exists.

It works fine with on a coworkers linux machine.