some links, libusb-dev

[usb-driver] / README

diff --git a/README b/README
index 13737b53039f8a816b70561d28ea0a20ea8518fa..aa4eefedb363f491bfe71105e07f3bbb3c8f005b 100644 (file)
--- a/README
+++ b/README
@@ -72,6 +72,11 @@ 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.