patch-1.3.36 linux/Documentation/cdrom/cm206

• Lines: 178
• Date: Wed Jul 19 10:15:42 1995
• Orig file: v1.3.35/linux/Documentation/cdrom/cm206
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.35/linux/Documentation/cdrom/cm206 linux/Documentation/cdrom/cm206
@@ -0,0 +1,177 @@
+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
+   
+Features as of 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 as of version 0.28
+---------------------------
+- Full speed stransfer rate (300 kB/s).
+- Minimum kernel memory usage for buffering (less than 3 kB).
+- Multisession support.
+- Tray locking.
+- Statistcics 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.
+
+Features still lacking
+----------------------
+- cm205ms+cm250 support. (I do have cm205ms docs now. I still have to
+  study Kai Petzke's cm205 drives to understand the workings of the
+  cm250 adapter card. Don't bet on me, write a driver yourself!)
+
+
+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 cards settings
+   into the source code. If you don't care, you can choose for
+   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 for option (a), answer yes to CONFIG_CM206 and
+   CONFIG_ISO9660_FS.
+
+   If you have chosen for option (b), answer yes to CONFIG_MODVERSIONS
+   and no (!) to CONFIG_CM206 and CONFIG_ISO9660_FS. 
+
+2) then do a 
+	
+	make dep; 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 seldomly use the cd-rom driver, you can choose for
+option (b), install as a loadable module. You may have to re-compile
+the module when you upgrade the kernel to a new version. Read the file
+`README.modules' in /usr/src/linux. 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 don't matter; you may 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. (If you use `tcsh' as shell, you
+might consider defining
+
+	alias listinstalledmodules 'cat /proc/modules | awk \{print\$1\}'
+	complete rmmod		'p/1/`listinstalledmodules`/'
+	alias listcompiledmodules '(cd /usr/src/linux/modules; \ls -o *.o)'
+	alias insmod		'insmod /usr/src/linux/modules/\!:1 \!:2*'
+	complete insmod		'p/1/`listcompiledmodules`/'
+
+which makes typing insmod and rmmod somewhat easier.)
+
+Using the driver as part of the kernel
+--------------------------------------
+If you have chosen for 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 may 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.
+
+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 ./include/linux/cm206.h. Change
+the defines of CM206_IRQ and CM206_BASE.
+
+
+
+Mounting the cdrom
+------------------
+1) Make sure that there is the right device 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 `tail /var/adm/messages' 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, like most Linux software, under the conditions 
+of the GNU general public license.