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-rw-r--r--drivers/input/tablet/wacom_sys.c32
-rw-r--r--drivers/input/tablet/wacom_wac.c3
-rw-r--r--drivers/input/tablet/wacom_wac.h2
3 files changed, 35 insertions, 2 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 9edf9806cff9..8b89e15bcf32 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -613,6 +613,30 @@ struct wacom_usbdev_data {
static LIST_HEAD(wacom_udev_list);
static DEFINE_MUTEX(wacom_udev_list_lock);
+static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product)
+{
+ int port1;
+ struct usb_device *sibling;
+
+ if (vendor == 0 && product == 0)
+ return dev;
+
+ if (dev->parent == NULL)
+ return NULL;
+
+ usb_hub_for_each_child(dev->parent, port1, sibling) {
+ struct usb_device_descriptor *d;
+ if (sibling == NULL)
+ continue;
+
+ d = &sibling->descriptor;
+ if (d->idVendor == vendor && d->idProduct == product)
+ return sibling;
+ }
+
+ return NULL;
+}
+
static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev)
{
struct wacom_usbdev_data *data;
@@ -1257,13 +1281,19 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
+ struct usb_device *other_dev;
+
/* Append the device type to the name */
strlcat(wacom_wac->name,
features->device_type == BTN_TOOL_PEN ?
" Pen" : " Finger",
sizeof(wacom_wac->name));
- error = wacom_add_shared_data(wacom_wac, dev);
+
+ other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
+ if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
+ other_dev = dev;
+ error = wacom_add_shared_data(wacom_wac, other_dev);
if (error)
goto fail3;
}
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index c3468c8dbd89..21d1f4eaff53 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1340,7 +1340,8 @@ void wacom_setup_device_quirks(struct wacom_features *features)
/* these device have multiple inputs */
if (features->type >= WIRELESS ||
- (features->type >= INTUOS5S && features->type <= INTUOS5L))
+ (features->type >= INTUOS5S && features->type <= INTUOS5L) ||
+ (features->oVid && features->oPid))
features->quirks |= WACOM_QUIRK_MULTI_INPUT;
/* quirk for bamboo touch with 2 low res touches */
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 96c185cc301e..3f926ec19ef9 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -109,6 +109,8 @@ struct wacom_features {
int distance_fuzz;
unsigned quirks;
unsigned touch_max;
+ int oVid;
+ int oPid;
};
struct wacom_shared {