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
  * ISE Webpack 9.1SP1
  * ISE Webpack 8.2SP3
  * ISE Webpack 8.1SP3

+ * ChipScope 9.1.03i

  * ChipScope 9.1.02i
  * ChipScope 9.1.02i

+ * ChipScope 8.2.04i

  * EDK 8.2.02i
 
 Build the library by calling `make'.
  * 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'
 
 
 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.
 
 Parallel Cable IV is currently only supported in 'compatibility mode', as no
 attempt to configure the ECP registers is done by this library.