HID: multitouch: fix protocol for Cando 2087:0a02

Cando 2087:0a02 was broken, this fixes it.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 4ea28de33d0a..e2fc1211f130 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -115,6 +115,7 @@ struct mt_device {
 #define MT_CLS_DUAL_NSMU_CONTACTID              0x0008
 #define MT_CLS_INRANGE_CONTACTNUMBER            0x0009
 #define MT_CLS_ALWAYS_TRUE                      0x000a
+#define MT_CLS_DUAL_CONTACT_NUMBER              0x0010
 
 /* vendor specific classes */
 #define MT_CLS_3M                               0x0101
@@ -177,6 +178,11 @@ static struct mt_class mt_classes[] = {
         { .name = MT_CLS_ALWAYS_TRUE,
                 .quirks = MT_QUIRK_ALWAYS_VALID |
                         MT_QUIRK_CONTACT_CNT_ACCURATE },
+        { .name = MT_CLS_DUAL_CONTACT_NUMBER,
+                .quirks = MT_QUIRK_ALWAYS_VALID |
+                        MT_QUIRK_CONTACT_CNT_ACCURATE |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                .maxcontacts = 2 },
 
         /*
          * vendor specific classes
@@ -947,7 +953,7 @@ static const struct hid_device_id mt_devices[] = {
         { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
                 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
                         USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
-        { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
+        { .driver_data = MT_CLS_DUAL_CONTACT_NUMBER,
                 MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
                         USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
         { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,