diff -ur linux.orig/drivers/usb/hid-core.c linux/drivers/usb/hid-core.c
--- linux.orig/drivers/usb/hid-core.c	2002-10-26 20:31:21.000000000 -0400
+++ linux/drivers/usb/hid-core.c	2002-10-27 01:45:04.000000000 -0400
@@ -1086,6 +1086,8 @@
 #define USB_DEVICE_ID_ATEN_2PORTKVM	0x2204
 #define USB_DEVICE_ID_ATEN_4PORTKVM	0x2205
 
+#define USB_VENDOR_ID_A4TECH		0x09DA
+#define USB_DEVICE_ID_A4TECH_WCP32PU	0x0006
 struct hid_blacklist {
 	__u16 idVendor;
 	__u16 idProduct;
@@ -1115,6 +1117,7 @@
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK },
 	{ 0, 0 }
 };
 
diff -ur linux.orig/drivers/usb/hid-input.c linux/drivers/usb/hid-input.c
--- linux.orig/drivers/usb/hid-input.c	2001-11-11 13:09:37.000000000 -0500
+++ linux/drivers/usb/hid-input.c	2002-10-27 03:36:52.000000000 -0500
@@ -269,6 +269,11 @@
 	}
 
 	set_bit(usage->type, input->evbit);
+	if ((usage->type == EV_REL)
+			&& (device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK)
+			&& (usage->code == REL_WHEEL)) {
+		set_bit(REL_HWHEEL, bit);
+	}
 
 	while (usage->code <= max && test_and_set_bit(usage->code, bit)) {
 		usage->code = find_next_zero_bit(bit, max + 1, usage->code);
@@ -303,6 +308,20 @@
 	struct input_dev *input = &hid->input;
 	int *quirks = &hid->quirks;
 
+	if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK)
+			&& (usage->code == BTN_BACK)) {
+		if (value)
+			hid->quirks |= HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
+		else
+			hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON;
+		return;
+	}
+	if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON)
+			&& (usage->code == REL_WHEEL)) {
+		input_event(input, usage->type, REL_HWHEEL, value);
+		return;
+	}
+
 	if (usage->hat_min != usage->hat_max) {
 		value = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
 		if (value < 0 || value > 8) value = 0;
diff -ur linux.orig/drivers/usb/hid.h linux/drivers/usb/hid.h
--- linux.orig/drivers/usb/hid.h	2002-10-26 20:31:21.000000000 -0400
+++ linux/drivers/usb/hid.h	2002-10-27 01:43:23.000000000 -0400
@@ -186,6 +186,8 @@
 #define HID_QUIRK_NOTOUCH	0x02
 #define HID_QUIRK_IGNORE	0x04
 #define HID_QUIRK_NOGET		0x08
+#define HID_QUIRK_2WHEEL_MOUSE_HACK	0x10
+#define HID_QUIRK_2WHEEL_MOUSE_HACK_ON	0x20
 
 /*
  * This is the global enviroment of the parser. This information is