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authorJason Gerecke <killertofu@gmail.com>2012-04-03 15:50:40 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-04-04 09:25:42 -0700
commitae584ca473289377dd7fd8c61439db4bfab5489a (patch)
tree844fa2f4aac8de7ddc72066247f7a3c04eec6443 /drivers/input/tablet/wacom_sys.c
parent9b5b95dd516a13d53ecf9217672d2116f05097bc (diff)
Input: wacom - add Intuos5 multitouch sensor support
Intuos5 tablets with PTH-* model numbers include a multitouch sensor which use the same touch reports as the 3rd-generation Bamboo. No useful information is in the HID descriptor for the touch interface so hardcoded values are used during setup. Signed-off-by: Jason Gerecke <killertofu@gmail.com> Reviewed-by: Chris Bagwell <chris@cnpbagwell.com> Reviewed-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/tablet/wacom_sys.c')
-rw-r--r--drivers/input/tablet/wacom_sys.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index d7713388a95..1c874adb705 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -233,6 +233,9 @@ static int wacom_parse_logical_collection(unsigned char *report,
* 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical
* Collection. Instead they define a Logical Collection with a single
* Logical Maximum for both X and Y.
+ *
+ * Intuos5 touch interface does not contain useful data. We deal with
+ * this after returning from this function.
*/
static int wacom_parse_hid(struct usb_interface *intf,
struct hid_descriptor *hid_desc,
@@ -1085,6 +1088,28 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
if (error)
goto fail3;
+ /*
+ * Intuos5 has no useful data about its touch interface in its
+ * HID descriptor. If this is the touch interface (wMaxPacketSize
+ * of WACOM_PKGLEN_BBTOUCH3), override the table values.
+ */
+ if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
+ if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
+ features->device_type = BTN_TOOL_FINGER;
+ features->pktlen = WACOM_PKGLEN_BBTOUCH3;
+
+ features->x_phy =
+ (features->x_max * 100) / features->x_resolution;
+ features->y_phy =
+ (features->y_max * 100) / features->y_resolution;
+
+ features->x_max = 4096;
+ features->y_max = 4096;
+ } else {
+ features->device_type = BTN_TOOL_PEN;
+ }
+ }
+
wacom_setup_device_quirks(features);
strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));