Hello,
I started writing a device driver for the Option
Globetrotter 3G+
UMTS/GPRS cards. Naming of those products is confusing, I
mean
cards as the cards using "nozomi" interface
mentioned here:
http://www.
pharscape.org/component/option,com_frontpage/Itemid,1/
My card was branded by German T-Mobile and had PCI ID
0x000c1931.
Unfortunately I have to give up further development since I
had to gave
back the card and I don't have the hardware and appropriate
contract
to continue.
This card is different from normal modem clones that provide
just serial
interface. It provides 5 emulated serial ports, called
"Control port, "Modem port", "Diag
port", "App #1 port", "App #2
port"
some of them are fully functional ports that accept AT
commands.
The purpose of this design is (as I suppose) to be able to
use another
port to monitor connection parameters (signal strength, band
used etc.)
on one port and to have established data connection on
another port in
parallel.
This driver was done looking at the nozomi Linux driver
available at
the Pharscape website. I didn't like their approach so this
driver is
written completely from scratch.
Current version of this code has the hardware support
written, however
I was able only to send commands and unable to read anything
from card.
Skeleton tty integration is there but needs probably
somebody with
serial experience to fix this. Therefore I would estimate
progress made
at 30%.
The good thing is that this driver should not crash your
system during
development so it is relatively safe to load 
I have posted the driver skeleton there:
ht
tp://akson.sgh.waw.pl/~saper/FreeBSD/opw/opw.tar
I was working on FreeBSD 6.x at the time.
I could go back to developing the driver but I would need
access to the
hardware and flatrate subscription to one of the German
mobile networks.
I am travelling quite often by train so testing
communications on a
high-speed train is not a problem.
--Marcin
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