--- kernel-2.6.27.orig/net/phonet/Kconfig
+++ kernel-2.6.27/net/phonet/Kconfig
@@ -0,0 +1,27 @@
+#
+# Phonet protocol
+#
+
+config PHONET
+	tristate "Phonet protocols family"
+	help
+	  The Phone Network protocol (PhoNet) is a packet-oriented
+	  communication protocol developped by Nokia for use with its modems.
+
+	  This is required for Maemo to use cellular data connectivity (if
+	  supported). It can also be used to control Nokia phones
+	  from a Linux computer, although AT commands may be easier to use.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called phonet. If unsure, say N.
+
+config PHONET_ICPR82
+	bool "Phonet ISA ICPR8x dialect"
+	default y
+	depends on PHONET
+	help
+	  ISA cellular modem firmware year 2008 branches implement a slightly
+	  different (and broken) version of the Phonet pipe protocol. This
+	  cannot be cleanly auto-detected as is currently known.
+
+	  If you use ISA ICPR81, ISA ICPR82 or unsure, say Y.