-===============================================================
-== BT8XXGPIO driver ==
-== ==
-== A driver for a selfmade cheap BT8xx based PCI GPIO-card ==
-== ==
-== For advanced documentation, see ==
-== http://www.bu3sch.de/btgpio.php ==
-===============================================================
+===================================================================
+A driver for a selfmade cheap BT8xx based PCI GPIO-card (bt8xxgpio)
+===================================================================
+For advanced documentation, see http://www.bu3sch.de/btgpio.php
A generic digital 24-port PCI GPIO card can be built out of an ordinary
Brooktree bt848, bt849, bt878 or bt879 based analog TV tuner card. The
These ports are accessible via 24 pins on the SMD chip package.
-==============================================
-== How to physically access the GPIO pins ==
-==============================================
+How to physically access the GPIO pins
+======================================
The are several ways to access these pins. One might unsolder the whole chip
and put it on a custom PCI board, or one might only unsolder each individual
there are some advanced soldering skills needed in any case.
The physical pinouts are drawn in the following ASCII art.
-The GPIO pins are marked with G00-G23
+The GPIO pins are marked with G00-G23::
G G G G G G G G G G G G G G G G G G
0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1