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FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General
Public License along with this program; if not, write
to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.
USB Driver for GSM modems
Copyright (C) 2005 Matthias Urlichs <smurf@smurf.
noris.de>
This driver is free software; you can redistribute it
and/or modify it under the terms of Version 2 of the
GNU General Public License as published by the Free
Software Foundation.
Portions copied from the Keyspan driver by Hugh Ble-
mings <hugh@blemings.org>
History: see the git log.
Work sponsored by: Sigos GmbH, Germany <info@
sigos.de>
This driver exists because the „normal" serial driver
doesn't work too well with GSM modems. Issues:
-- data loss -- one single Receive URB is not nearly
enough - nonstandard fl ow (Option devices) control -
controlling the baud rate doesn't make sense
This driver is named „option" because the most com-
mon device it's used for is a PC-Card (with an internal
OHCI-USB interface, behind which the GSM interface
sits), made by Option Inc.
Some of the „one port" devices actually exhibit multi-
ple USB instances on the USB bus. This is not a bug,
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