---------------CLModem README---------------This is CLModem-0.3.0, a Linux kernel module driver for the Cirrus Logic(Ambient) CL-MD5620DT DSP-based controller-less modem (but maybe it workswith some other models; if you try this driver with another model pleasetell me if it worked).This driver is ALPHA software. USE IT AT YOUR OWN RISK!Currently this driver can do the following:    - reset the modem    - get the modem off/on hook    - dial a number using DTMF or Pulses    - monitor Call Progress (dialtone, answer & Ring detection, etc)    - originate a V.34 connection up to 33600bps    - check modem status    - send and receive data    - behave like a normal Serial TTY device    - understands some commands (not AT commands!!)    - works with minicom, pppd, asmodem, etc.From version 0.3.0 the driver is a kernel module that can be inserted orremoved at any time (maybe from some initialization script). This change wasnecessary for fixing some problems the user-space driver couldn't address.As this is an ALPHA driver it's incomplete and has bugs, so it COULD blockyour computer or leave your modem in an unsafe state under certain conditions.Install--------First you must gather some information about your modem and be completely sureof this information. What you need is your Modem Base IO address and IRQ numberwhich can be obtained from "/proc/pci" e.g: cat /proc/pci and looking forsomething like:  Bus  0, device  13, function  0:  Communication controller: Cirrus Logic Unknown device (rev 1).  Vendor id=1013. Device id=4000.  Medium devsel.  IRQ 10.  Non-prefetchable 32 bit memory at 0xebffe000 [0xebffe000].  I/O at 0xde00 [0xde01].or you can obtain them from within Windoze.Next you MUST edit "clm_config.h" and configure CLM_BASE_IO_ADDRESS andCLM_IRQ, for example:	#define CLM_BASE_IO_ADDRESS     0xde00	#define CLM_IRQ                 10NOTE: This driver will try to find a PCI modem and will compare its settings      with those provided, so they must match.Once you have edited "clm_config.h" just run "make" and the module will becompiled.	$ makeNOTE: the kernel module is "clm.o"Usage------First you must create a character special device file to access the modem, soyou should type:    $ su    # mknod /dev/clm c 121 0Next you must load the CLM module    # /sbin/insmod clm.oNow you can use minicom and test your modem. See Modem Commands below.Note: you must configure minicom first to use /dev/clm or symlink      /dev/modem to /dev/clm.Using PPP----------For configuring PPP I suggest you use linuxconf (rp3 & wvdial don't work well)setting the modem port to "/dev/clm" and using the included "chat-ppp0" afterchanging the phone number to call.The "PPP" script starts a PPP connection; but you must edit it first to suityour specific needs. It uses "chat-ppp0" as the connection script    # ./PPPto stop PPP you can type "killall pppd" as root.Modem Commands--------------The CLM device undertands some commands, that you can test using minicom.  command	description  -------	----------------------   INIT		Initializes the modem   SPKR ON	turns on the speaker   SPKR OFF	turns off the speaker   SPKRVOL n	sets speaker volume to n (0-2)   DIAL phone	dials phone number and originates a data modem connectionHowever, to hangup the modem you'll have to quit minicom.Note: If you have problems establishing a connection take a look at your log      files (e.g /var/log/messages)Bugs-----    - Using V.34 increments RX errors too much depending on the line quality      and there's no Error Correction protocol implemented yet.    - The driver doesn't detect a remote hangup properly and if a retrain is      started the driver will hangup the modem.To Do------    - V.90 & X2    - voice stuff    - V.42 LAPM (for error correction)    - test line quality during connection    - retrains, rate renegotiations, etcAbout CLModem--------------This driver was written by Mikhail Moreyra <mmv@Phreaker.net>and is licensed under the terms of the GNU General Public License. See LICENSE.    Copyright (C) 2000 Mikhail Moreyra    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.    This program is distributed in the hope that it will be useful,    but WITHOUT ANY WARRANTY; without even the implied warranty of    MERCHANTABILITY or 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA