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+
+                Parallel link cable for Texas Instruments handhelds
+                ===================================================
+
+
+Author: Romain Lievin
+Homepage: http://lpg.ticalc.org/prj_tidev/index.html
+
+
+INTRODUCTION:
+
+This is a driver for the very common home-made parallel link cable, a cable 
+designed for connecting TI8x/9x graphing calculators (handhelds) to a computer
+or workstation (Alpha, Sparc). Given that driver is built on parport, the 
+parallel port abstraction layer, this driver is architecture-independent.
+
+It can also be used with another device plugged on the same port (such as a
+ZIP drive). I have a 100MB ZIP and both of them work fine!
+
+If you need more information, please visit the 'TI drivers' homepage at the URL
+above.
+
+WHAT YOU NEED:
+
+A TI calculator and a program capable of communicating with your calculator.
+
+TiLP will work for sure (since I am its developer!). yal92 may be able to use
+it by changing tidev for tipar (may require some hacking...).
+
+HOW TO USE IT:
+
+You must have first compiled parport support (CONFIG_PARPORT_DEV): either 
+compiled in your kernel, either as a module. 
+
+Next, (as root):
+
+       modprobe parport
+       modprobe tipar
+
+If it is not already there (it usually is), create the device:
+
+       mknod /dev/tipar0 c 115 0
+       mknod /dev/tipar1 c 115 1
+       mknod /dev/tipar2 c 115 2
+
+You will have to set permissions on this device to allow you to read/write
+from it:
+
+       chmod 666 /dev/tipar[0..2]
+       
+Now you are ready to run a linking program such as TiLP. Be sure to configure 
+it properly (RTFM).
+       
+MODULE PARAMETERS:
+
+  You can set these with:  modprobe tipar NAME=VALUE
+  There is currently no way to set these on a per-cable basis.
+
+  NAME: timeout
+  TYPE: integer
+  DEFAULT: 15
+  DESC: Timeout value in tenth of seconds. If no data is available once this 
+        time has expired then the driver will return with a timeout error.
+
+  NAME: delay
+  TYPE: integer
+  DEFAULT: 10
+  DESC: Inter-bit delay in micro-seconds. A lower value gives an higher data
+        rate but makes transmission less reliable.
+
+These parameters can be changed at run time by any program via ioctl(2) calls 
+as listed in ./include/linux/ticable.h.
+
+Rather than write 50 pages describing the ioctl() and so on, it is
+perhaps more useful you look at ticables library (dev_link.c) that demonstrates
+how to use them, and demonstrates the features of the driver. This is
+probably a lot more useful to people interested in writing applications
+that will be using this driver.
+
+QUIRKS/BUGS:
+
+None.
+
+HOW TO CONTACT US:
+
+You can email me at roms@lpg.ticalc.org. Please prefix the subject line
+with "TIPAR: " so that I am certain to notice your message.
+You can also mail JB at jb@jblache.org. He packaged these drivers for Debian.
+
+CREDITS:
+
+The code is based on tidev.c & parport.c.
+The driver has been developed independently of Texas Instruments.