This is the Linksys-ported driver from WRT54G3G-ST_v2.00.9_US.tgz, re-based against 2.4.35 and repaired for obvious breakage (didn't use its device table, etc.).

Changes from Linksys tree:
 - Remove 'vendor' and 'product' parameters; these aren't used in the
mainstream driver and seem to only have served to break it.
 - Remove bogus 'sierra_device_ids' table, used with above.
 - Changed references to 'sierra_device_ids' back to id_table
 - Changed non-standard CONFIG_USB_SERIAL_SIERRA_3G (line 886) to
current module standard CONFIG_USB_SERIAL_SIERRAWIRELESS
 - Added #include to enable pl2303 hack to remain until I can figure
out if it's still necessary.
Signed-off-by:  RB <aoz.syn@gmail.com>

SVN-Revision: 11899

target/linux/brcm-2.4/patches/015-sierra_kconfig.patch

@@ -20,3 +20,25 @@ diff -Naur linux-2.4.35.4.orig/drivers/usb/serial/Makefile linux-2.4.35.4/driver
  
  # Objects that export symbols.
  export-objs	:= usbserial.o
+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