--- ./drivers/usb/storage/initializers.c.orig	2007-04-26 09:20:58.000000000 +0200
+++ ./drivers/usb/storage/initializers.c	2007-10-30 22:03:29.000000000 +0100
@@ -90,3 +90,14 @@
 
 	return (res ? -1 : 0);
 }
+
+/* This places the HUAWEI E220 devices in multi-port mode */
+int usb_stor_switch_ports_init(struct us_data *us)
+{
+	us->iobuf[0] = 0x1;
+	(void)usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
+		USB_REQ_SET_FEATURE, USB_TYPE_STANDARD | USB_RECIP_DEVICE, 
+		0x01, 0x0, us->iobuf, 0x1, 1000);
+	return 0;
+}
+
--- ./drivers/usb/storage/initializers.h.orig	2006-12-09 15:26:06.000000000 +0100
+++ ./drivers/usb/storage/initializers.h	2007-10-30 22:03:29.000000000 +0100
@@ -47,3 +47,6 @@
 /* This function is required to activate all four slots on the UCR-61S2B
  * flash reader */
 int usb_stor_ucr61s2b_init(struct us_data *us);
+
+/* This places the HUAWEI E220 devices in multi-port mode */
+int usb_stor_switch_ports_init(struct us_data *us);
--- ./drivers/usb/storage/unusual_devs.h.orig	2007-10-30 19:40:17.000000000 +0100
+++ ./drivers/usb/storage/unusual_devs.h	2007-10-30 22:05:51.000000000 +0100
@@ -1463,6 +1463,16 @@
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_IGNORE_RESIDUE ),
 
+/* This tells the usb driver to place the HUAWEI E220 devices into multi-port mode
+ * Reported by fangxiaozhi <fangxiaozhi60675@huawei.com>
+ * and by linlei <linlei83@huawei.com>
+ */
+UNUSUAL_DEV( 0x12d1, 0x1003, 0x0000, 0x0000,
+                "HUAWEI",
+		"HUAWEI MOBILE Mass Storage",
+		US_SC_DEVICE, US_PR_DEVICE, usb_stor_switch_ports_init,
+		0),
+
 /* Reported by Vilius Bilinkevicius <vilisas AT xxx DOT lt) */
 UNUSUAL_DEV(  0x132b, 0x000b, 0x0001, 0x0001,
 		"Minolta",