/****************************************************************************
* ixj.c
*
* Device Driver for Quicknet Technologies, Inc.'s Telephony cards
* including the Internet PhoneJACK, Internet PhoneJACK Lite,
* Internet PhoneJACK PCI, Internet LineJACK, Internet PhoneCARD and
* SmartCABLE
*
* (c) Copyright 1999-2001 Quicknet Technologies, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Author: Ed Okerson, <eokerson@quicknet.net>
*
* Contributors: Greg Herlein, <gherlein@quicknet.net>
* David W. Erhart, <derhart@quicknet.net>
* John Sellers, <jsellers@quicknet.net>
* Mike Preston, <mpreston@quicknet.net>
*
* Fixes: David Huggins-Daines, <dhd@cepstral.com>
* Fabio Ferrari, <fabio.ferrari@digitro.com.br>
* Artis Kugevics, <artis@mt.lv>
* Daniele Bellucci, <bellucda@tiscali.it>
*
* More information about the hardware related to this driver can be found
* at our website: http://www.quicknet.net
*
* IN NO EVENT SHALL QUICKNET TECHNOLOGIES, INC. BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
* OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF QUICKNET
* TECHNOLOGIES, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* QUICKNET TECHNOLOGIES, INC. SPECIFICALLY DISCLAIMS ANY WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND QUICKNET TECHNOLOGIES, INC. HAS NO OBLIGATION
* TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*
***************************************************************************/
/*
* $Log: ixj.c,v $
*
* Revision 4.8 2003/07/09 19:39:00 Daniele Bellucci
* Audit some copy_*_user and minor cleanup.
*
* Revision 4.7 2001/08/13 06:19:33 craigs
* Added additional changes from Alan Cox and John Anderson for
* 2.2 to 2.4 cleanup and bounds checking
*
* Revision 4.6 2001/08/13 01:05:05 craigs
* Really fixed PHONE_QUERY_CODEC problem this time
*
* Revision 4.5 2001/08/13 00:11:03 craigs
* Fixed problem in handling of PHONE_QUERY_CODEC, thanks to Shane Anderson
*
* Revision 4.4 2001/08/07 07:58:12 craigs
* Changed back to three digit version numbers
* Added tagbuild target to allow automatic and easy tagging of versions
*
* Revision 4.3 2001/08/07 07:24:47 craigs
* Added ixj-ver.h to allow easy configuration management of driver
* Added display of version number in /prox/ixj
*
* Revision 4.2 2001/08/06 07:07:19 craigs
* Reverted IXJCTL_DSP_TYPE and IXJCTL_DSP_VERSION files to original
* behaviour of returning int rather than short *
*
* Revision 4.1 2001/08/05 00:17:37 craigs
* More changes for correct PCMCIA installation
* Start of changes for backward Linux compatibility
*
* Revision 4.0 2001/08/04 12:33:12 craigs
* New version using GNU autoconf
*
* Revision 3.105 2001/07/20 23:14:32 eokerson
* More work on CallerID generation when using ring cadences.
*
* Revision 3.104 2001/07/06 01:33:55 eokerson
* Some bugfixes from Robert Vojta <vojta@ipex.cz> and a few mods to the Makefile.
*
* Revision 3.103 2001/07/05 19:20:16 eokerson
* Updated HOWTO
* Changed mic gain to 30dB on Internet LineJACK mic/speaker port.
*
* Revision 3.102 2001/07/03 23:51:21 eokerson
* Un-mute mic on Internet LineJACK when in speakerphone mode.
*
* Revision 3.101 2001/07/02 19:26:56 eokerson
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