HID: multitouch: support buttons and trackpoint on Lenovo X1 Tab Gen2

On the 2nd generation Lenovo Tablet only clickpad is working; the
trackpoint and three mouse buttons do not work.

hid_multitouch must export all inputs in order to get trackpoint and
buttons to function.

Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

2 files changed, 7 insertions, 0 deletions

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 11798b10e522..a98919199858 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -661,6 +661,7 @@
 #define USB_DEVICE_ID_LENOVO_CBTKBD     0x6048
 #define USB_DEVICE_ID_LENOVO_TPPRODOCK  0x6067
 #define USB_DEVICE_ID_LENOVO_X1_COVER   0x6085
+#define USB_DEVICE_ID_LENOVO_X1_TAB     0x60a3
 
 #define USB_VENDOR_ID_LG                0x1fd2
 #define USB_DEVICE_ID_LG_MULTITOUCH     0x0064
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 5609725df714..9e8c4d2ba11d 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1420,6 +1420,12 @@ static const struct hid_device_id mt_devices[] = {
                         USB_VENDOR_ID_ALPS_JP,
                         HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
 
+        /* Lenovo X1 TAB Gen 2 */
+        { .driver_data = MT_CLS_WIN_8_DUAL,
+                HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
+                           USB_VENDOR_ID_LENOVO,
+                           USB_DEVICE_ID_LENOVO_X1_TAB) },
+
         /* Anton devices */
         { .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
                 MT_USB_DEVICE(USB_VENDOR_ID_ANTON,