generate a better driver identification

[usb-driver] / README

diff --git a/README b/README
index 13737b53039f8a816b70561d28ea0a20ea8518fa..5222c4b9a17ed62f9c52efb7fa11ccac74f4d0c5 100644 (file)
--- a/README
+++ b/README
@@ -14,7 +14,9 @@ the following software:
  * 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'.
@@ -72,6 +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.