diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index e60e8d530697fcaf0a7c4a43f42e53b455de6f4d..9a91dee2cfe9e61175e67c1e272b833ce59ffdc0 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -332,6 +332,11 @@
 #define USB_VENDOR_ID_GENERAL_TOUCH	0x0dfc
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS 0x0003
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS 0x0100
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101 0x0101
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102 0x0102
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106 0x0106
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A 0x010a
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100 0xe100
 
 #define USB_VENDOR_ID_GLAB		0x06c2
 #define USB_DEVICE_ID_4_PHIDGETSERVO_30	0x0038
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 5e5fe1b8eebb73e5d4533997a889eee87d637150..cb3250c5a397f9ba19b5974792e1cee374e9f9f0 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -250,12 +250,12 @@ static struct mt_class mt_classes[] = {
 	{ .name	= MT_CLS_GENERALTOUCH_TWOFINGERS,
 		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
 			MT_QUIRK_VALID_IS_INRANGE |
-			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+			MT_QUIRK_SLOT_IS_CONTACTID,
 		.maxcontacts = 2
 	},
 	{ .name	= MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
 		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
-			MT_QUIRK_SLOT_IS_CONTACTNUMBER
+			MT_QUIRK_SLOT_IS_CONTACTID
 	},
 
 	{ .name = MT_CLS_FLATFROG,
@@ -1173,6 +1173,21 @@ static const struct hid_device_id mt_devices[] = {
 	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
 		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
 			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
 
 	/* Gametel game controller */
 	{ .driver_data = MT_CLS_NSMU,