diff --git a/target/linux/generic-2.6/patches-2.6.25/981-backport_usb_serial_sierrawireless_ids.patch b/target/linux/generic-2.6/patches-2.6.25/981-backport_usb_serial_sierrawireless_ids.patch
new file mode 100644
index 0000000000000000000000000000000000000000..98103ae131f36b1e20c6ba656a38816dc7287f11
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.25/981-backport_usb_serial_sierrawireless_ids.patch
@@ -0,0 +1,22 @@
+--- a/drivers/usb/serial/sierra.c
++++ b/drivers/usb/serial/sierra.c
+@@ -166,14 +166,19 @@
+ 	{ USB_DEVICE(0x1199, 0x6815) },	/* Sierra Wireless MC8775 */
+ 	{ USB_DEVICE(0x03f0, 0x1e1d) },	/* HP hs2300 a.k.a MC8775 */
+ 	{ USB_DEVICE(0x1199, 0x6820) },	/* Sierra Wireless AirCard 875 */
++	{ USB_DEVICE(0x1199, 0x6821) },	/* Sierra Wireless AirCard 875U */
+ 	{ USB_DEVICE(0x1199, 0x6832) },	/* Sierra Wireless MC8780*/
+ 	{ USB_DEVICE(0x1199, 0x6833) },	/* Sierra Wireless MC8781*/
++	{ USB_DEVICE(0x1199, 0x683B), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless MC8785 Composite*/
++	{ USB_DEVICE(0x1199, 0x683C), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless MC8790 Composite*/
+ 	{ USB_DEVICE(0x1199, 0x6850) },	/* Sierra Wireless AirCard 880 */
+ 	{ USB_DEVICE(0x1199, 0x6851) },	/* Sierra Wireless AirCard 881 */
+ 	{ USB_DEVICE(0x1199, 0x6852) },	/* Sierra Wireless AirCard 880 E */
+ 	{ USB_DEVICE(0x1199, 0x6853) },	/* Sierra Wireless AirCard 881 E */
+ 	{ USB_DEVICE(0x1199, 0x6855) },	/* Sierra Wireless AirCard 880 U */
+ 	{ USB_DEVICE(0x1199, 0x6856) },	/* Sierra Wireless AirCard 881 U */
++	{ USB_DEVICE(0x1199, 0x6859), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */
++	{ USB_DEVICE(0x1199, 0x685A), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 885 E */
+ 
+ 	{ USB_DEVICE(0x1199, 0x6468) }, /* Sierra Wireless MP3G - EVDO */
+ 	{ USB_DEVICE(0x1199, 0x6469) }, /* Sierra Wireless MP3G - UMTS/HSPA */
diff --git a/target/linux/generic-2.6/patches-2.6.26/981-backport_usb_serial_sierrawireless_ids.patch b/target/linux/generic-2.6/patches-2.6.26/981-backport_usb_serial_sierrawireless_ids.patch
new file mode 100644
index 0000000000000000000000000000000000000000..161d2d00276626c509bec572691d7e212cd65245
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.26/981-backport_usb_serial_sierrawireless_ids.patch
@@ -0,0 +1,10 @@
+--- a/drivers/usb/serial/sierra.c
++++ b/drivers/usb/serial/sierra.c
+@@ -205,6 +205,7 @@
+ 	{ USB_DEVICE(0x1199, 0x6832) },	/* Sierra Wireless MC8780*/
+ 	{ USB_DEVICE(0x1199, 0x6833) },	/* Sierra Wireless MC8781*/
+ 	{ USB_DEVICE(0x1199, 0x683B), .driver_info = DEVICE_1_PORT },	/* Sierra Wireless MC8785 Composite*/
++	{ USB_DEVICE(0x1199, 0x683C), .driver_info = DEVICE_1_PORT },	/* Sierra Wireless MC8790 Composite*/
+ 	{ USB_DEVICE(0x1199, 0x6850) },	/* Sierra Wireless AirCard 880 */
+ 	{ USB_DEVICE(0x1199, 0x6851) },	/* Sierra Wireless AirCard 881 */
+ 	{ USB_DEVICE(0x1199, 0x6852) },	/* Sierra Wireless AirCard 880 E */