The HID descriptor for the 2nd-gen Intuos Pro large (PTH-860) contains a typo which defines an incorrect logical maximum Y value. This causes a small portion of the bottom of the tablet to become unusable (both because the area is below the "bottom" of the tablet and because 'wacom_wac_event' ignores out-of-range values). It also results in a skewed aspect ratio.

To fix this, we add a quirk to 'wacom_usage_mapping' which overwrites the data with the correct value.

Signed-off-by: Jason Gerecke jason.gerecke@wacom.com CC: stable@vger.kernel.org # v4.10+ --- drivers/hid/wacom_sys.c | 8 ++++++++ 1 file changed, 8 insertions(+)

diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c index ee7a37eb159a..545986cfb978 100644 --- a/drivers/hid/wacom_sys.c +++ b/drivers/hid/wacom_sys.c @@ -395,6 +395,14 @@ static void wacom_usage_mapping(struct hid_device *hdev, } }

+ /* 2nd-generation Intuos Pro Large has incorrect Y maximum */ + if (hdev->vendor == USB_VENDOR_ID_WACOM && + hdev->product == 0x0358 && + WACOM_PEN_FIELD(field) && + wacom_equivalent_usage(usage->hid) == HID_GD_Y) { + field->logical_maximum = 43200; + } + switch (usage->hid) { case HID_GD_X: features->x_max = field->logical_maximum;