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-This is the readme file for the driver for the Philips/LMS cdrom drive
-cm206 in combination with the cm260 host adapter card.
-
- (c) 1995 David A. van Leeuwen
-
-Changes since version 0.99
---------------------------
-- Interfacing to the kernel is routed though an extra interface layer,
- cdrom.c. This allows runtime-configurable `behavior' of the cdrom-drive,
- independent of the driver.
-
-Features since version 0.33
----------------------------
-- Full audio support, that is, both workman, workbone and cdp work
- now reasonably. Reading TOC still takes some time. xmcd has been
- reported to run successfully.
-- Made auto-probe code a little better, I hope
-
-Features since version 0.28
----------------------------
-- Full speed transfer rate (300 kB/s).
-- Minimum kernel memory usage for buffering (less than 3 kB).
-- Multisession support.
-- Tray locking.
-- Statistics of driver accessible to the user.
-- Module support.
-- Auto-probing of adapter card's base port and irq line,
- also configurable at boot time or module load time.
-
-
-Decide how you are going to use the driver. There are two
-options:
-
- (a) installing the driver as a resident part of the kernel
- (b) compiling the driver as a loadable module
-
- Further, you must decide if you are going to specify the base port
- address and the interrupt request line of the adapter card cm260 as
- boot options for (a), module parameters for (b), use automatic
- probing of these values, or hard-wire your adaptor card's settings
- into the source code. If you don't care, you can choose
- autoprobing, which is the default. In that case you can move on to
- the next step.
-
-Compiling the kernel
---------------------
-1) move to /usr/src/linux and do a
-
- make config
-
- If you have chosen option (a), answer yes to CONFIG_CM206 and
- CONFIG_ISO9660_FS.
-
- If you have chosen option (b), answer yes to CONFIG_MODVERSIONS
- and no (!) to CONFIG_CM206 and CONFIG_ISO9660_FS.
-
-2) then do a
-
- make clean; make zImage; make modules
-
-3) do the usual things to install a new image (backup the old one, run
- `rdev -R zImage 1', copy the new image in place, run lilo). Might
- be `make zlilo'.
-
-Using the driver as a module
-----------------------------
-If you will only occasionally use the cd-rom driver, you can choose
-option (b), install as a loadable module. You may have to re-compile
-the module when you upgrade the kernel to a new version.
-
-Since version 0.96, much of the functionality has been transferred to
-a generic cdrom interface in the file cdrom.c. The module cm206.o
-depends on cdrom.o. If the latter is not compiled into the kernel,
-you must explicitly load it before cm206.o:
-
- insmod /usr/src/linux/modules/cdrom.o
-
-To install the module, you use the command, as root
-
- insmod /usr/src/linux/modules/cm206.o
-
-You can specify the base address on the command line as well as the irq
-line to be used, e.g.
-
- insmod /usr/src/linux/modules/cm206.o cm206=0x300,11
-
-The order of base port and irq line doesn't matter; if you specify only
-one, the other will have the value of the compiled-in default. You
-may also have to install the file-system module `iso9660.o', if you
-didn't compile that into the kernel.
-
-
-Using the driver as part of the kernel
---------------------------------------
-If you have chosen option (a), you can specify the base-port
-address and irq on the lilo boot command line, e.g.:
-
- LILO: linux cm206=0x340,11
-
-This assumes that your linux kernel image keyword is `linux'.
-If you specify either IRQ (3--11) or base port (0x300--0x370),
-auto probing is turned off for both settings, thus setting the
-other value to the compiled-in default.
-
-Note that you can also put these parameters in the lilo configuration file:
-
-# linux config
-image = /vmlinuz
- root = /dev/hda1
- label = Linux
- append = "cm206=0x340,11"
- read-only
-
-
-If module parameters and LILO config options don't work
--------------------------------------------------------
-If autoprobing does not work, you can hard-wire the default values
-of the base port address (CM206_BASE) and interrupt request line
-(CM206_IRQ) into the file /usr/src/linux/drivers/cdrom/cm206.h. Change
-the defines of CM206_IRQ and CM206_BASE.
-
-
-Mounting the cdrom
-------------------
-1) Make sure that the right device is installed in /dev.
-
- mknod /dev/cm206cd b 32 0
-
-2) Make sure there is a mount point, e.g., /cdrom
-
- mkdir /cdrom
-
-3) mount using a command like this (run as root):
-
- mount -rt iso9660 /dev/cm206cd /cdrom
-
-4) For user-mounts, add a line in /etc/fstab
-
- /dev/cm206cd /cdrom iso9660 ro,noauto,user
-
- This will allow users to give the commands
-
- mount /cdrom
- umount /cdrom
-
-If things don't work
---------------------
-
-- Try to do a `dmesg' to find out if the driver said anything about
- what is going wrong during the initialization.
-
-- Try to do a `dd if=/dev/cm206cd | od -tc | less' to read from the
- CD.
-
-- Look in the /proc directory to see if `cm206' shows up under one of
- `interrupts', `ioports', `devices' or `modules' (if applicable).
-
-
-DISCLAIMER
-----------
-I cannot guarantee that this driver works, or that the hardware will
-not be harmed, although I consider it most unlikely.
-
-I hope that you'll find this driver in some way useful.
-
- David van Leeuwen
- david@tm.tno.nl
-
-Note for Linux CDROM vendors
------------------------------
-You are encouraged to include this driver on your Linux CDROM. If
-you do, you might consider sending me a free copy of that cd-rom.
-You can contact me through my e-mail address, david@tm.tno.nl.
-If this driver is compiled into a kernel to boot off a cdrom,
-you should actually send me a free copy of that cd-rom.
-
-Copyright
----------
-The copyright of the cm206 driver for Linux is
-
- (c) 1995 David A. van Leeuwen
-
-The driver is released under the conditions of the GNU general public
-license, which can be found in the file COPYING in the root of this
-source tree.