+Configure a MadWifi device for adhoc mode:
+
+Disable the autocreation of athX devices:
+# echo "options ath_pci autocreate=none" > /etc/modprobe.d/madwifi
+
+Remove the autocreated device for now:
+# wlanconfig ath0 destroy
+
+Configuration in /etc/network/interfaces:
+
+iface ath0 inet static
+ madwifi-base wifi0
+ madwifi-mode adhoc
+ ...
+
+Hints:
+ - Do not use interface names without ending 0 (otherwise startup fails).
+ - Only chooss unique names for interfaces.
+--
+Find dangling symlinks using zsh:
+
+% ls **/*(-@)