diff -Naur linux-2.4.35.4.orig/drivers/usb/serial/Config.in linux-2.4.35.4/drivers/usb/serial/Config.in
--- linux-2.4.35.4.orig/drivers/usb/serial/Config.in	2008-01-25 10:09:11.541747549 -0700
+++ linux-2.4.35.4/drivers/usb/serial/Config.in	2008-01-25 10:17:01.890745265 -0700
@@ -39,6 +39,7 @@
    dep_tristate '  USB KOBIL chipcard reader (EXPERIMENTAL)' CONFIG_USB_SERIAL_KOBIL_SCT $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
    dep_tristate '  USB Prolific 2303 Single Port Serial Driver' CONFIG_USB_SERIAL_PL2303 $CONFIG_USB_SERIAL
    dep_tristate '  USB REINER SCT cyberJack pinpad/e-com chipcard reader (EXPERIMENTAL)' CONFIG_USB_SERIAL_CYBERJACK $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
+   dep_tristate '  USB Sierra Wireless Driver' CONFIG_USB_SERIAL_SIERRAWIRELESS $CONFIG_USB_SERIAL
    dep_tristate '  USB Xircom / Entregra Single Port Serial Driver (EXPERIMENTAL)' CONFIG_USB_SERIAL_XIRCOM $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
    dep_tristate '  USB ZyXEL omni.net LCD Plus Driver (EXPERIMENTAL)' CONFIG_USB_SERIAL_OMNINET $CONFIG_USB_SERIAL $CONFIG_EXPERIMENTAL
 fi
diff -Naur linux-2.4.35.4.orig/drivers/usb/serial/Makefile linux-2.4.35.4/drivers/usb/serial/Makefile
--- linux-2.4.35.4.orig/drivers/usb/serial/Makefile	2008-01-25 10:09:11.542749582 -0700
+++ linux-2.4.35.4/drivers/usb/serial/Makefile	2008-01-25 10:17:37.412855271 -0700
@@ -26,6 +26,7 @@
 obj-$(CONFIG_USB_SERIAL_IR)			+= ir-usb.o
 obj-$(CONFIG_USB_SERIAL_KLSI)			+= kl5kusb105.o
 obj-$(CONFIG_USB_SERIAL_KOBIL_SCT)		+= kobil_sct.o
+obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS)	+= sierra.o
 
 # Objects that export symbols.
 export-objs	:= usbserial.o