
Version 3.5-beta6 release notes
-------------------------------

IMPORTANT! This version of the driver is compatible only with Linux versions
	   1.3.59 to 1.3.6x. It may work with few earlier ones as a loadable
	   module but...

	   This is a BETA test version. Most known bugs should have been fixed.
	   However it's possible that there are still bugs. Please report them
	   to me ASAP so that they can be fixed before Linux 1.4. But look
	   at the web page (see below) before sending me a bug report. 

	   Crashing with GUS should be fixed now.
	   Recording is still disabled with ESS1688/688 cards since it
	   causes a crash.

Please read the SOUND-HOWTO (available from sunsite.unc.edu and other Linux ftp 
sites). It gives instructions about using sound with Linux. It's bit out of
date but still very useful. Information about bug fixes and such things
is available from the web page (see below).

*****************************************************************
* NEW! Driver's home page is http://personal.eunet.fi/pp/voxware*
* The file Readme.cards contains card specific instructions     *
* about configuring various cards.				*
*****************************************************************

There are some programming information (little bit old) in the
Hacker's Guide 
(ftp://nic.funet.fi/pub/OS/Linux/ALPHA/sound/snd-sdk-doc-0.1.ps.gz).
Believe me: The file is really there. The directory is just hidden and
you have to cd into it before the file is visible. Note: This directory
was accidently removed some time ago but it's now back.

I have got many patches from various persons during last year. Some of
them are still on my mailbox and they should be included in versions
after v3.5 (I will not add aditional features before v3.5 is ready).

   ====================================================
-  THIS VERSION ____REQUIRES____ Linux 1.3.64 OR LATER.
   ====================================================

-  THIS VERSION MAY NOT WORK WITH Linux VERSIONS RELEASED
   AFTER end of Feb 1996. If this version doesn't compile with
   your kernel version, please use the sound driver version
   included in your kernel.

You may need the snd-util-3.5.tar.gz and snd-data-0.1.tar.Z
packages to use this driver. They should be in the same
ftp site or BBS from where you got this driver. For
example at nic.funet.fi:pub/OS/Linux/*.

If you are looking for the installation instructions, please
look at linux/Readme.

Supported soundcards
--------------------

Gravis Ultrasound (GUS)
GUS MAX
GUS with the 16 bit sampling daughtercard
GUS ACE
GUS PnP support should be available around May 1996.
PAS16
Windows Sound System compatible soundcards
ECHO-PSS (cards based on the PSS architecture by Analog Devices.
	Including Orchid SW32, Cardinal DSP16 among others).
		(NOTE! WSS mode may not work (DMA channel setup problem)).
MediaTriX AudioTriX Pro (OPL4 and the optional effect daughtercard
	require special initialization. There is a program (setfx) in
	the snd-util-3.0.tar.gz package which does it).
Ensoniq SoundScape & SoundScape Elite
Ensonig SoundScape PnP not supported yet (summer 1996?)
MV Jazz16 based soundcards (ProSonic, 3D etc).
SoundMan Wave
Mozart (OAK OTI-601 interface chip) based soundcards.
MAD16 (an interface chip by OPTi) based soundcards (TB Tropez ???).
(NOTE! The MAD16 looks similar to the Mozart chip. It could be a good
idea to configure MAD16 cards as Mozart ones. The MAD16 driver doesn't set
up MPU401 which the Mozart one does.
CS4232 based cards such as AcerMagic S23.
ESS ES1688 based soundcards.


In addition all Sound Blaster models and clones (up to AWE32) work if
you want to use them. SB16/SB32/AWE32 PnP models don't work yet. See the web
page for more info.

The Emu synthesizer chip of AWE32 will not be supported soon. The same is
true with the ASP chip also. Creative Technology will not release detailed
information about them so it's not possible to support them.

===========================================================================
If your card is compatible with SB, MPU401 or Windows Sound System, it
may work with the driver even if it's not listed in the above list. In this
case it may require initialization using DOS. Just start DOS and cold
boot to Linux (etc.) by hitting ctrl-alt-del. 
===========================================================================

Compatibility with the earlier versions
---------------------------------------

There have been some changes in soundcard.h after v2.5 of the driver
(v2.90 is compatible with this one). Binaries compiled with this version
of soundcard.h will not work with v2.0 and earlier.

Contributors
------------

This driver contains code by several contributors. In addition several other
persons have given usefull suggestions. The following is a list of major
contributors. (I could have forgotten some names.)

	Craig Metz	1/2 of the PAS16 Mixer and PCM support
	Rob Hooft	Volume computation algorithm for the FM synth.
	Mika Liljeberg	uLaw encoding and decoding routines
	Jeff Tranter	Linux SOUND HOWTO document
	Greg Lee	Volume computation algorithm for the GUS and
			lot's of valuable suggestions.
	Andy Warner	ISC port
	Jim Lowe,
	Amancio Hasty Jr	FreeBSD/NetBSD port
	Anders Baekgaard 	Bughunting and valuable suggestions.
	Joerg Schubert	SB16 DSP support.
	Andrew Robinson Improvements to the GUS driver
	Megens SA	MIDI recording for SB and SB Pro.
	Mikael Nordqvist  Linear volume support for GUS and
			  nonblocking /dev/sequencer.
	Ian Hartas		SVR4.2 port
	Markus Aroharju	and
	Risto Kankkunen		Major contributions to the mixer support
				of GUS v3.7.
	Hunyue Yau	Mixer support for SG NX Pro.
	Marc Hoffman	PSS support.
	Rainer Vranken	Initialization for Jazz16 (ProSonic, MV3D, SM Wave).
	Peter Trattler	Initial version of loadable module support for Linux.
	JRA Gibson	16 bit mode for Jazz16
	Davor Jadrijevic MAD16 support
	Gregor Hoffleit	Mozart support
	Riccardo Facchetti Audio Excel DSP 16 (aedsp16) support
	James Hightower Spotting a tiny but important bug in CS423x support.

There are propably many other names missing. If you have sent me some
patches and your name is not in the above list, please inform me.

Sponsors etc.
-------------

The following companies have greatly helped development of this driver 
in form of a free copy of their product:

Novell, Inc.		UnixWare personal edition + SDK
The Santa Cruz Operation, Inc. 	A SCO OpenServer + SDK
Ensoniq Corp,		a SoundScape card and extensive amount of assistance
MediaTriX Peripherals Inc, a AudioTriX Pro card + SDK
Acer, Inc.		a pair of AcerMagic S23 cards.

In addition the following companies have provided me sufficial amount
of technical information at least some of their products (free or $$$):

Advanced Gravis Computer Technology Ltd.
Media Vision Inc.
Analog Devices Inc.
Logitech Inc.
Aztech Labs Inc.
Crystal Semiconductor Corporation,
Integrated Circuit Systems Inc.
OAK Technology
OPTi
Ad Lib Inc. ($$)
Music Quest Inc. ($$)
Creative Labs ($$$)

If you have some problems
=========================

Read the sound HOWTO (sunsite.unc.edu:/pub/Linux/docs/...?).
Also look at the home page (http://personal.eunet.fi/pp/voxware). It may
contain info about some recent bug fixes.

It's likely that you have some problems when trying to use the sound driver
first time. Soundcards don't have standard configuration so there are no
good default configuration to use. Please try to use same I/O, DMA and IRQ
values for the soundcard than with DOS.

If you get an error message when trying to use the driver, please look
at /var/adm/messages for more verbose error message.


In general the easiest way to diagnoze problems is to do "cat /dev/sndstat".

If you get an error message, there are some problems with the driver setup:

	- "No such file or directory" tells that the device files for
	the sound driver are missing. Use the script at the end of
	linux/drivers/sound/Readme.linux to create them.

	- "No such device" telss that the sound driver is not in the kernel.
	You have to reconfigure and recompile the kernel to have the sound
	driver. Compiling the driver doesn't help alone. You have to boot
	with the newly compiled one before the driver becomes active.
	The Linux-HOWTO should help in this step.

The following errors are likely with /dev/dsp and /dev/audio.

	- "No such device or address". This error message should not happen
	with /dev/sndstat but it's possible with the other sound devices.
	This error indicates that there are no suitable hardware for the
	device file or the sound driver has been compiled without support for
	this particular device. For example /dev/audio and /dev/dsp will not
	work if "digitized voice support" was not enabled during "make config".
	
	- "Device or resource busy". Propably the IRQ (or DMA) channel 
	required by the soundcard is in use by some other device/driver.

	- "I/O error". Almost certainly (99%) it's an IRQ or DMA conflict.
	Look at the kernel messages in /var/adm/notice for more info.

	- "Invalid argument". The application is calling ioctl()
	with impossible parameters. Check that the application is
	for sound driver version 2.X or later.

In general the printout of of /dev/sndstat should tell what is the problem.
It's possible that there are bugs in the sound driver but 99% of the problems
reported to me are caused by somehow incorrect setup during "make config".

For owners of TI TM4000M notebooks
----------------------------------

There appears to be some kind of conflict between the sound support
(MV Jazz), mouse port and the sound driver. You could try to configure kernel
with the C&T 82C710 mouse port support disabled.

Hannu

Regards,

Hannu Savolainen
hannu@voxware.pp.fi

Snail mail:	Hannu Savolainen
		Hiekkalaiturintie 3 A 8
		00980 Helsinki
		Finland

NOTE!	I propably don't answer to Snail mail or FAX messages. Sending answer
	to each of them is simply too expensive and time consuming. However I
	try to reply every email message I get (within a week). If you don't 
	get response, please check how your address is written in the message
	header. I can't answer if I don't have a valid reply address.

Sound driver's home page is http://personal.eunet.fi/pp/voxware
