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authorJason Gerecke <killertofu@gmail.com>2018-06-12 13:42:46 -0700
committerJiri Kosina <jkosina@suse.cz>2018-06-20 09:27:23 +0200
commitd471b6b22d37bf9928c6d0202bdaaf76583b8b61 (patch)
treeabc16189e2bb1e170181c5f3a3fca455179c8a21 /drivers
parentebeaa367548e9e92dd9374b9464ff6e7d157117b (diff)
downloadlinux-d471b6b22d37bf9928c6d0202bdaaf76583b8b61.tar.bz2
HID: wacom: Correct logical maximum Y for 2nd-gen Intuos Pro large
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+ Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hid/wacom_sys.c8
1 files changed, 8 insertions, 0 deletions
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;