X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/usb-driver/blobdiff_plain/45b9b80b6f9d6fccbcaba26b63aed8418f871add..3b1b5fa8abd003d16dff62d998d3660c24c5bd8b:/README

diff --git a/README b/README
index 597b1b2..5222c4b 100644
--- a/README
+++ b/README
@@ -9,11 +9,14 @@ should work on every kernel version which is supported by libusb and supports
 ppdev. It was written against impact from ISE Webpack 9.1SP1 and tested with
 the following software:
 
+ * ISE Webpack 9.1SP3
  * ISE Webpack 9.1SP2
  * ISE Webpack 9.1SP1
  * ISE Webpack 8.2SP3
  * ISE Webpack 8.1SP3
+ * ChipScope 9.1.03i
  * ChipScope 9.1.02i
+ * ChipScope 8.2.04i
  * EDK 8.2.02i
 
 Build the library by calling `make'.
@@ -71,6 +74,11 @@ ppdev
 To use the device as an ordinary user, put the user in the group 'lp'
 
 
+If you have an almost compatible cable which works with other software but not
+with Impact, try adding -DFORCE_PC3_IDENT to the CFLAGS line in the Makefile.
+This enables a hack by Stefan Ziegenbalg to force detection of a parallel cable.
+
+
 Parallel Cable IV is currently only supported in 'compatibility mode', as no
 attempt to configure the ECP registers is done by this library.