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authorLinus Torvalds <torvalds@linux-foundation.org>2017-04-20 12:26:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-04-20 12:26:10 -0700
commit7f425895926af100cfdaebd504703325e5c08d3c (patch)
treecfbef1d9de05c8e94b15883db2d6e9ffac5c440d /drivers
parentdb5dc4996414d61162c9c83bf73e0e2bf2636911 (diff)
parent6f107fab8f18228936cd3df88a3bb6050865c2c8 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID fixes from Jiri Kosina: "Two last-minute regression fixes for Wacom driver from Jason Gerecke" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: wacom: Override incorrect logical maximum contact identifier HID: wacom: Treat HID_DG_TOOLSERIALNUMBER as unsigned
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hid/wacom_wac.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 94250c293be2..c68ac65db7ff 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2006,7 +2006,7 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
return;
case HID_DG_TOOLSERIALNUMBER:
wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
- wacom_wac->serial[0] |= value;
+ wacom_wac->serial[0] |= (__u32)value;
return;
case WACOM_HID_WD_SENSE:
wacom_wac->hid_data.sense_state = value;
@@ -2176,6 +2176,16 @@ static void wacom_wac_finger_usage_mapping(struct hid_device *hdev,
wacom_wac->hid_data.cc_index = field->index;
wacom_wac->hid_data.cc_value_index = usage->usage_index;
break;
+ case HID_DG_CONTACTID:
+ if ((field->logical_maximum - field->logical_minimum) < touch_max) {
+ /*
+ * The HID descriptor for G11 sensors leaves logical
+ * maximum set to '1' despite it being a multitouch
+ * device. Override to a sensible number.
+ */
+ field->logical_maximum = 255;
+ }
+ break;
}
}